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Russia ILI surveillance 2012-2013

Ronan Kelly

Ronan Kelly

Retired 2020
2011-2012 thread here - http://www.flutrackers.com/forum/showthread.php?t=175297

Week 01.10.2012-07.10.2012

Influenza and ARI morbidity data

Clinical and epidemiological data show low influenza activity in Russia. The nationwide ILI & ARI morbidity level registered this week (60.5) was lower the national baseline (66.7) by 9.3%.

Russia.gif

Cumulative number of diagnosed influenza cases

Cumulative results of influenza diagnosis by different tests were submitted by 49 RBLs and 2 WHO NICs. According to these data as a result of investigation of 1143 patients no influenza cases were detected
...
Conclusion

Influenza and ARI morbidity data. Clinical and epidemiological data show low influenza activity in Russia. The nationwide ILI & ARI morbidity level registered this week (60.5) was lower the national baseline (66.7) by 9.3%.
Etiology of ILI & ARI morbidity. No influenza cases were detected by laboratory tests (virus isolation, IFA and rRT-PCR). The overall proportion of respiratory samples tested positive for parainfluenza, adenovirus and RSV was determined as 13.0% (PCR) and 15.5% (IFA).
Sentinel surveillance. Clinical samples from 74 SARI and ILI/ARI patients were investigated by rRT-PCR. No influenza cases were detected among 29 SARI and 45 ILI/ARI patients.

http://www.influenza.spb.ru/en/influenza_surveillance_system_in_russia/epidemic_situation/
 
Re: Russia ILI surveillance 2012-2013

Week 08.10.2012-14.10.2012

Influenza and ARI morbidity data

Clinical and epidemiological data show low influenza activity in Russia. The nationwide ILI & ARI morbidity level registered this week (61.1) was lower the national baseline (66.7) by 8.4%.

Russia.gif
...
Cumulative number of diagnosed influenza cases

Cumulative results of influenza diagnosis by different tests were submitted by 52 RBLs and 2 WHO NICs. According to these data as a result of investigation of 1378 patients the overall proportion of respiratory samples positive for influenza virus was estimated as 0.4% including 0.1% for influenza A(H1N1)pdm09 virus, 0.1% for influenza A(H3N2) virus and 0.2% for influenza B virus
...
Conclusion

Influenza and ARI morbidity data. Clinical and epidemiological data show low influenza activity in Russia. The nationwide ILI & ARI morbidity level registered this week (61.1) was lower the national baseline (66.7) by 8.4%.
Etiology of ILI & ARI morbidity. The overall proportion of respiratory samples tested positive for influenza by virus isolation, IFA and rRT-PCR was estimated as 0.4%, for parainfluenza, adenovirus and RSV in total - as 7.9% (PCR) and 19.7% (IFA).
Sentinel surveillance. Clinical samples from 75 SARI and ILI/ARI patients were investigated by rRT-PCR. No influenza cases were detected.
 
Re: Russia ILI surveillance 2012-2013

Week 15.10.2012-21.10.2012

Influenza and ARI morbidity data

Clinical and epidemiological data show low influenza activity in Russia. The nationwide ILI & ARI morbidity level registered this week (61.9) was lower the national baseline by 7,3%.

Russia.gif

Cumulative number of diagnosed influenza cases

Cumulative results of influenza diagnosis by different tests were submitted by 51 RBLs and 2 WHO NICs. According to these data as a result of investigation of 1408 patients the overall proportion of respiratory samples positive for influenza virus was estimated as 0.4% including 0.3% for influenza A(H3N2) virus and 0.1% for influenza B virus
...
Conclusion

Influenza and ARI morbidity data. Clinical and epidemiological data show low influenza activity in Russia. The nationwide ILI & ARI morbidity level registered this week (61.9) was lower the national baseline by 7,3%.
Etiology of ILI & ARI morbidity. The overall proportion of respiratory samples tested positive for influenza by virus isolation, IFA and rRT-PCR was estimated as 0.4%, for parainfluenza, adenovirus and RSV in total - as 17.6% (PCR) and 25.5% (IFA).
Sentinel surveillance. Clinical samples from 70 SARI and ILI/ARI patients were investigated by rRT-PCR. No influenza cases were detected.

http://www.influenza.spb.ru/en/influenza_surveillance_system_in_russia/epidemic_situation/
 
Re: Russia ILI surveillance 2012-2013

Week 22.10.2012-28.10.2012

Influenza and ARI morbidity data

Clinical and epidemiological data show slight increase of influenza and ARI activity in Russia. The nationwide ILI & ARI morbidity level registered this week (63.6) was lower the national baseline by 4.6%.

Russia.gif

Cumulative number of diagnosed influenza cases

Cumulative results of influenza diagnosis by different tests were submitted by 47 RBLs. According to these data as a result of investigation of 1448 patients the overall proportion of respiratory samples positive for influenza virus was estimated as 0.4% including 0.07% for influenza A(H1N1)pdm09 virus, 0.2% for influenza A(H3N2) virus and 0.1% for influenza B virus
...
Conclusion

Influenza and ARI morbidity data. Clinical and epidemiological data show slight increase of influenza and ARI activity in Russia. The nationwide ILI & ARI morbidity level registered this week (63.6) was lower the national baseline by 4.6%.
Etiology of ILI & ARI morbidity. The overall proportion of respiratory samples tested positive for influenza by virus isolation, IFA and rRT-PCR was estimated as 0.4%, for parainfluenza, adenovirus and RSV in total - as 13.8% (PCR) and 21.8% (IFA).
Sentinel surveillance. Clinical samples from 73 SARI and ILI/ARI patients were investigated by rRT-PCR. No influenza cases were detected.
http://www.influenza.spb.ru/en/influenza_surveillance_system_in_russia/epidemic_situation/
 
Re: Russia ILI surveillance 2012-2013

Week 29.10.2012-04.11.2012

Influenza and ARI morbidity data

Clinical and epidemiological data show low influenza activity in Russia. The nationwide ILI & ARI morbidity level registered this week (60.6) was lower the national baseline by 10.1%.

Russia.gif

Cumulative number of diagnosed influenza cases

Cumulative results of influenza diagnosis by different tests were submitted by 51 RBLs and 2 WHO NICs. According to these data as a result of investigation of 1499 patients the overall proportion of respiratory samples positive for influenza virus was estimated as 0.4% including 0.1% for influenza A(H1N1)pdm09 virus, 0.2% for influenza A(H3N2) virus and 0.1% for influenza B virus (table 4)
...
Conclusion

Influenza and ARI morbidity data. Clinical and epidemiological data show low influenza activity in Russia. The nationwide ILI & ARI morbidity level registered this week (60.6) was lower the national baseline by 10.1%.
Etiology of ILI & ARI morbidity. The overall proportion of respiratory samples tested positive for influenza by IFA and rRT-PCR was estimated as 0.4%, for parainfluenza, adenovirus and RSV in total - as 21.6% (PCR) and 26.5% (IFA) of investigated samples.
Sentinel surveillance. Clinical samples from 65 SARI and ILI/ARI patients were investigated by rRT-PCR. No influenza cases were detected.
http://www.influenza.spb.ru/en/influenza_surveillance_system_in_russia/epidemic_situation/
 
Re: Russia ILI surveillance 2012-2013

Week 05.11.2012-11.11.2012

Influenza and ARI morbidity data

Clinical and epidemiological data show low influenza activity in Russia. The nationwide ILI & ARI morbidity level registered this week (52.6) was lower than the national baseline by 21.1%.

Russia.gif

Cumulative number of diagnosed influenza cases

The overall proportion of respiratory samples tested positive for influenza by IFA and rRT-PCR was estimated as 0.5%, including 0.1% for influenza A(H3N2) virus and 0.4% for influenza B virus.

...
Conclusion

Influenza and ARI morbidity data. Clinical and epidemiological data show low influenza activity in Russia. The nationwide ILI & ARI morbidity level registered this week (52.6) was lower than the national baseline by 21.1%.
Etiology of ILI & ARI morbidity. The overall proportion of respiratory samples tested positive for influenza by IFA and rRT-PCR was estimated as 0.5%, for parainfluenza, adenovirus and RSV in total as 14.0% (PCR) and 22.6% (IFA) of investigated samples.
Sentinel surveillance. Clinical samples from 65 SARI and ILI/ARI patients were investigated by rRT-PCR. No influenza cases were detected.

http://www.influenza.spb.ru/en/influenza_surveillance_system_in_russia/epidemic_situation/
 
Re: Russia ILI surveillance 2012-2013

Week 12.11.2012-18.11.2012

Influenza and ARI morbidity data

Low influenza activity was shown during week 47 in Russia in traditional surveillance system. The nationwide ILI & ARI morbidity level registered this week (58.8 per 10 000 of population) was lower the baseline by 12.1%.

Rus.gif

Cumulative number of diagnosed influenza cases

Cumulative results of influenza diagnosis by different tests were submitted by 55 RBLs. According to these data as a result of investigation of 1634 patients the overall proportion of respiratory samples positive for influenza virus was estimated by IFA as 0.7%, including 0.2% for influenza A(H1N1)pdm09 virus, 0.2% for influenza A(H3N2) virus and 0.4% for influenza B virus. No influenza cases were recognized this week by RT-PCR. No influenza virus was isolated.
...
Conclusion

Influenza and ARI morbidity data. Low influenza activity was shown during week 47 in Russia in traditional surveillance system. The nationwide ILI & ARI morbidity level registered this week (58.8 per 10 000 of population) was lower the baseline by 12.1%.
Etiology of ILI & ARI morbidity. The overall proportion of respiratory samples tested positive by IFA for influenza was estimated as 0.7%, for ARI of parainfluenza, adenovirus and RSV etiology as 21.9%. Percent of PCR positive ARI cases of non-influenza etiology (PIV, adeno- and RSV) was estimated as 15.9% of investigated samples. No influenza cases were recognized during this week by other tests (RT-PCR and virus isolation).
http://www.influenza.spb.ru/en/influenza_surveillance_system_in_russia/epidemic_situation/
 
Re: Russia ILI surveillance 2012-2013

Week 26.11.2012-02.12.2012

Influenza and ARI morbidity data

Low influenza activity was shown during week 49 in Russia in traditional surveillance system. The nationwide ILI & ARI morbidity level registered this week (65.6 per 10 000 of population) was lower the baseline by 1.9%.

Rus.gif

Cumulative number of diagnosed influenza cases

Cumulative results of influenza diagnosis by different tests were submitted by 51 RBLs. According to these data as a result of investigation of 1879 patients the overall proportion of respiratory samples positive for influenza virus was estimated as 0.5%, including 0.2% for influenza A(H3N2) virus and 0.3% for influenza B virus. No influenza virus was isolated.
...
Conclusion

Influenza and ARI morbidity data. Low influenza activity was shown during week 49 in Russia in traditional surveillance system. The nationwide ILI & ARI morbidity level registered this week (65.6 per 10 000 of population) was lower the baseline by 1.9%.
Etiology of ILI & ARI morbidity. The overall proportion of respiratory samples tested positive for influenza was estimated as 0.5%. Percent of positive ARI cases of non-influenza etiology (PIV, adeno- and RSV) was estimated as 21.9% by IFA and 17.8% by PCR of investigated samples. No influenza virus was isolated during this week.
In sentinel surveillance system clinical samples from 91 SARI and ILI/ARI patients were investigated by rRT-PCR. No influenza cases were detected.
http://www.influenza.spb.ru/en/influenza_surveillance_system_in_russia/epidemic_situation/
 
Re: Russia ILI surveillance 2012-2013

Week 03.12.2012-09.12.2012

Influenza and ARI morbidity data

Low influenza activity was registered during week 50 in Russia in traditional surveillance system. The nationwide ILI & ARI morbidity level registered this week (67.0 per 10 000 of population) has reached the national baseline (66.9).

Rus.gif

Cumulative number of diagnosed influenza cases

Cumulative results of influenza diagnosis by different tests were submitted by 55 RBLs. According to these data as a result of investigation of 1903 patients the overall proportion of respiratory samples positive for influenza virus was estimated as 0.8%, including 0.1% for influenza A(H1N1)pdm09 virus, 0.4% for influenza A(H3N2) virus and 0.4% for influenza B virus. No influenza virus was isolated up to now.
...
Conclusion

Influenza and ARI morbidity data. Low influenza activity was registered during week 50 in Russia in traditional surveillance system. The nationwide ILI & ARI morbidity level registered this week (67.0 per 10 000 of population) has reached the national baseline (66.9).
Etiology of ILI & ARI morbidity. The overall proportion of respiratory samples tested positive for influenza was estimated as 0.8%. Percent of positive ARI cases of non-influenza etiology (PIV, adeno- and RSV) was estimated as 23.7% by IFA and 19.5% by PCR of investigated patients. No influenza virus was isolated during this week.
In sentinel surveillance system clinical samples from 93 SARI and ILI/ARI patients were investigated by rRT-PCR. A total 3 influenza influenza A(H3N2) cases were detected among 41 SARI patients.
http://www.influenza.spb.ru/en/influenza_surveillance_system_in_russia/epidemic_situation/
 
Re: Russia ILI surveillance 2012-2013

Week 10.12.2012-16.12.2012

Influenza and ARI morbidity data

Low influenza activity was registered during week 51 in Russia in traditional surveillance system. The nationwide ILI & ARI morbidity level registered this week (69.4 per 10 000 of population) has reached the national baseline on 3.6%.

Rus.gif

Cumulative number of diagnosed influenza cases

Cumulative results of influenza diagnosis by different tests were submitted by 54 RBLs. According to these data as a result of investigation of 1998 patients the overall proportion of respiratory samples positive for influenza virus was estimated as 0.7%, including 0.2% for influenza A(H1N1)pdm09 virus, 0.3% for influenza A(H3N2) virus and 0.2% for influenza B virus. One influenza virus B was isolated.
...
Conclusion

Influenza and ARI morbidity data. Low influenza activity was registered during week 51 in Russia in traditional surveillance system. The nationwide ILI & ARI morbidity level registered this week (69.4 per 10 000 of population) has reached the national baseline on 3.6%.
Etiology of ILI & ARI morbidity. The overall proportion of respiratory samples tested positive for influenza was estimated as 0.7%. Percent of positive ARI cases of non-influenza etiology (PIV, adeno- and RSV) was estimated as 23.4% by IFA and 16.6% by PCR of investigated patients. One influenza B virus was isolated during this week.
In sentinel surveillance system clinical samples from 67 SARI and ILI/ARI patients were investigated by rRT-PCR. A total one influenza A(H3N2) case was detected among 29 SARI patients.
http://www.influenza.spb.ru/en/influenza_surveillance_system_in_russia/epidemic_situation/
 
Re: Russia ILI surveillance 2012-2013

Week 17.12.2012-23.12.2012

Influenza and ARI morbidity data
Epidemiological data show low influenza activity in Russia with slight increase of morbidity in comparison with previous week. The nationwide ILI & ARI morbidity level registered this week (70.4 per 10 000 of population) has exceeded the national baseline by 5.0%.
Rus.gif

Cumulative number of diagnosed influenza cases
Cumulative results of influenza diagnosis by different tests were submitted by 51 RBLs. According to these data as a result of investigation of 1674 patients the overall proportion of respiratory samples positive for influenza virus was estimated as 0.8%, including 0.1% for influenza A(H1N1)pdm09 virus, 0.4% for influenza A(H3N2) virus, 0.06% for unsubtyped influenza A virus and 0.2% for influenza B virus. Two influenza A(H3N2) viruses were isolated in Vladivostok (Far-Eastern Federal District) and Novosibirsk (Siberian FD) on 24.12.12.

...
Conclusion
Influenza and ARI morbidity data. Low influenza activity was registered during week 52 in Russia in traditional surveillance system. The nationwide ILI & ARI morbidity level registered this week (70.4 per 10 000 of population) has exceeded the national baseline by 5.0%.

Etiology of ILI & ARI morbidity. The overall proportion of respiratory samples tested positive for influenza was estimated as 0.8%. Percent of positive ARI cases of non-influenza etiology (PIV, adeno- and RSV) was estimated as 23.9% by IFA and 14.0% by PCR of investigated patients.

In sentinel surveillance system clinical samples from 86 SARI and ILI/ARI patients were investigated by rRT-PCR. A total one influenza A(H3N2) case was detected among 51 ILI/ARI patients.

http://www.influenza.spb.ru/en/influenza_surveillance_system_in_russia/epidemic_situation/
 
Re: Russia ILI surveillance 2012-2013

Week 17.12.2012-23.12.2012

Influenza and ARI morbidity data

Epidemiological data show low influenza activity in Russia with slight increase of morbidity in comparison with previous week. The nationwide ILI & ARI morbidity level registered this week (70.4 per 10 000 of population) has exceeded the national baseline by 5.0%.

Rus.gif

Cumulative number of diagnosed influenza cases

Cumulative results of influenza diagnosis by different tests were submitted by 51 RBLs. According to these data as a result of investigation of 1674 patients the overall proportion of respiratory samples positive for influenza virus was estimated as 0.8%, including 0.1% for influenza A(H1N1)pdm09 virus, 0.4% for influenza A(H3N2) virus, 0.06% for unsubtyped influenza A virus and 0.2% for influenza B virus. Two influenza A(H3N2) viruses were isolated in Vladivostok (Far-Eastern Federal District) and Novosibirsk (Siberian FD) on 24.12.12.

...
Conclusion

Influenza and ARI morbidity data. Low influenza activity was registered during week 52 in Russia in traditional surveillance system. The nationwide ILI & ARI morbidity level registered this week (70.4 per 10 000 of population) has exceeded the national baseline by 5.0%.
Etiology of ILI & ARI morbidity. The overall proportion of respiratory samples tested positive for influenza was estimated as 0.8%. Percent of positive ARI cases of non-influenza etiology (PIV, adeno- and RSV) was estimated as 23.9% by IFA and 14.0% by PCR of investigated patients.
In sentinel surveillance system clinical samples from 86 SARI and ILI/ARI patients were investigated by rRT-PCR. A total one influenza A(H3N2) case was detected among 51 ILI/ARI patients.
 
Re: Russia ILI surveillance 2012-2013

Week 31.12.2012-06.01.2013

Influenza and ARI morbidity data

Low influenza activity was registered during week 53 in Russia in traditional surveillance system. The nationwide ILI & ARI morbidity level registered this week (29.9 per 10 000 of population) was below the national baseline by 55%.

Rus.gif

Cumulative number of diagnosed influenza cases

Cumulative results of influenza diagnosis by different tests were submitted by 15 RBLs. According to these data as a result of investigation of 201 patients the overall proportion of respiratory samples positive for influenza virus was estimated as 5.5%, including 4.0% for influenza A(H1N1)pdm09 virus, 0.5% for influenza A(H3N2) virus and 1.0% for influenza B virus. One influenza A(H3N2) virus was isolated in Astrakhan (Southern Federal District) and one influenza A(H1N1)pdm09 virus was isolated in Moskow NIC.

...
Conclusion

Influenza and ARI morbidity data. Low influenza activity was registered during week 53 in Russia in traditional surveillance system. The nationwide ILI & ARI morbidity level registered this week (29.9 per 10 000 of population) was below the national baseline by 55%.
Etiology of ILI & ARI morbidity. The overall proportion of respiratory samples tested positive for influenza was estimated as 5.5%, including 4.0% for influenza A(H1N1)pdm09 virus, 0.5% for influenza A(H3N2) virus and 1.0% for influenza B virus. Percent of positive ARI cases of non-influenza etiology (PIV, adeno- and RSV) was estimated as 17.4% by IFA and 27.2% by PCR of investigated patients.
In sentinel surveillance system clinical samples from 23 SARI and ILI/ARI patients were investigated by rRT-PCR. No influenza cases were detected.
 
Re: Russia ILI surveillance 2012-2013

Week 2 07.01.2013-13.01.2013

Influenza and ARI morbidity data

Epidemiological data show increase of influenza activity in Russia in comparison with previous week. The nationwide ILI & ARI morbidity level registered this week (44.2 per 10 000 of population) was lower than the national baseline by 33.9%. Epidemic thresholds of ILI and ARI were exceeded in two cities (Ekaterinburg and Kazan) by 56-65% and in two cities (Ufa and Yakutsk) by 21-34% of 59 base laboratories collaborating with two WHO NICs in Russia.

Rus.gif

Cumulative number of diagnosed influenza cases

Cumulative results of influenza diagnosis by different tests were submitted by 52 RBLs. According to these data as a result of investigation of 1180 patients the overall proportion of respiratory samples positive for influenza virus was estimated as 5.1%, including 2.1% for influenza A(H1N1)pdm09 virus, 2.0% for influenza A(H3N2) virus, 0.08% for unsubtyped influenza A virus and 0.8% for influenza B virus. No influenza virus was isolated this week.

...
Conclusion

Influenza and ARI morbidity data. Increased influenza activity was registered during the week 2.2013 in traditional surveillance system in Russia but the nationwide ILI & ARI morbidity level registered this week (44.2 per 10 000 of population) continued to be below the national baseline by 33.9%. Epidemic thresholds of ILI and ARI were exceeded in two cities (Ekaterinburg and Kazan) by 56-65% and in two cities (Ufa and Yakutsk) by 21-34% of 59 base laboratories collaborating with two WHO NICs in Russia.
Etiology of ILI & ARI morbidity. The overall proportion of respiratory samples tested positive for influenza was estimated as 5.1%, including 2.1% for influenza A(H1N1)pdm09 virus, 2.0% for influenza A(H3N2) virus, 0.08% for unsubtyped influenza A virus and 0.8% for influenza B virus. No influenza virus was isolated this week. Percent of positive ARI cases of non-influenza etiology (PIV, adeno- and RSV) was estimated as 18.3% by IFA and 21.2% by PCR of investigated patients.
In sentinel surveillance system clinical samples from 86 SARI and ILI/ARI patients were investigated by rRT-PCR. As a result 13 (22.0%) influenza cases were detected among 59 SARI patients, including 1 (1.7%) A(H1N1)pdm09 case, 7 (11.9%) influenza A(H3N2) cases and 5 (8.5%) influenza B cases. A total of 3 (11.1%) influenza A(H3N2) cases were detected among 27 ILI/ARI patients.
 
Re: Russia ILI surveillance 2012-2013

Week 14.01.2013-20.01.2013

Influenza and ARI morbidity data

Increased influenza activity was registered during the week 3.2013 in traditional surveillance system in Russia but the nationwide ILI & ARI morbidity level registered this week (60.0 per 10 000 of population) continued to be below the national baseline by 10.3%. Epidemic thresholds of ILI and ARI were exceeded in 2 cities (Ufa and Cheboksary) by 67-80.7% and in 4 cities (Barnaul, Ekaterinburg, Kazan and Tomsk) by 22.9-37.9% of 59 base laboratories collaborating with two WHO NICs in Russia.

Rus.gif

Cumulative number of diagnosed influenza cases

Cumulative results of influenza diagnosis by different tests were submitted by 53 RBLs. According to these data as a result of investigation of 2041 patients the overall proportion of respiratory samples positive for influenza virus was estimated as 9.1%, including 4.8% for influenza A(H1N1)pdm09 virus, 3.6% for influenza A(H3N2) virus, 0.05% for unsubtyped influenza A virus and 0.7% for influenza B virus. Two influenza A(H3N2) viruses were isolated in Vladivostok (Far-Eastern FD) and Moscow NIC (Central FD), two influenza A(H1N1)pdm09 viruses were isolated in Ekaterinburg (Ural FD).

...
Conclusion

Influenza and ARI morbidity data. Increased influenza activity was registered during the week 3.2013 in traditional surveillance system in Russia but the nationwide ILI & ARI morbidity level registered this week (60.0 per 10 000 of population) continued to be below the national baseline by 10.3%.
Etiology of ILI & ARI morbidity. The overall proportion of respiratory samples tested positive for influenza was estimated as 9.1%, including 4.8% for influenza A(H1N1)pdm09 virus, 3.6% for influenza A(H3N2) virus, 0.05% for unsubtyped influenza A virus and 0.7% for influenza B virus. Two influenza A(H3N2) viruses and two influenza A(H1N1)pdm09 viruses were isolated this week. Percent of positive ARI cases of non-influenza etiology (PIV, adeno- and RSV) was estimated as 23.2% by IFA and 19.8% by PCR of investigated patients.
Second A(H1N1)pdm09 lethal influenza case was registered from SARI patient in Central FD.
In sentinel surveillance system clinical samples from 110 SARI and ILI/ARI patients were investigated by rRT-PCR. As a result 7 (13.0%) influenza cases were detected among 54 SARI patients, including 1 (1.9%) A(H1N1)pdm09 case, 5 (9.3%) influenza A(H3N2) cases and 1 (1.9%) influenza B case. Among 56 ILI/ARI patients 2 (3.6%) influenza cases were detected including one influenza A(H3N2) case and one influenza A(H1N1)pdm09 case.
 
Re: Russia ILI surveillance 2012-2013

Week 21.01.2013-27.01.2013

Influenza and ARI morbidity data

Epidemic thresholds of ILI and ARI were exceeded by 57.7-117.6% in 3 cities (Tomsk, Ekaterinburg, Ufa) and by 20-49.6% in 8 cities (Birobidzhan, Kazan, Kemerovo, Novosibirsk, Samara, Saratov, Chelyabinsk and Cheboksary) of 59 ones collaborating with two WHO NICs in Russia.

Rus.gif

Cumulative number of diagnosed influenza cases

Cumulative results of influenza laboratory diagnosis by different tests were submitted by 53 RBLs. According to these data as a result of investigation of 2363 patients the overall proportion of respiratory samples positive for influenza virus was estimated as 14.7%, including 7.6% for influenza A(H1N1)pdm09 virus, 5.4% for influenza A(H3N2) virus, 0.6% for non-subtyped influenza A virus and 1.1% for influenza B virus. Twenty five influenza viruses were isolated this week including 13 influenza A(H1N1)pdm09 viruses in Ekaterinburg (Ural FD), Moscow NIC (Central FD) and Orenburg (Volga FD), 8 influenza A(H3N2) viruses in Astrakhan (South FD), Ekaterinburg (Ural FD), Novosibirsk, Tomsk (Siberian FD) and Vladivostok (Far-Eastern FD) and 4 influenza B viruses in Novosibirsk (Siberian FD) and Vladivostok (Far-Eastern FD).
...
Conclusion

Cumulative results of influenza laboratory diagnosis by different tests were submitted by 53 RBLs. According to these data as a result of investigation of 2363 patients the overall proportion of respiratory samples positive for influenza virus was estimated as 14.7%, including 7.6% for influenza A(H1N1)pdm09 virus, 5.4% for influenza A(H3N2) virus, 0.6% for non-subtyped influenza A virus and 1.1% for influenza B virus. Twenty five influenza viruses were isolated this week including 13 influenza A(H1N1)pdm09 viruses in Ekaterinburg (Ural FD), Moscow NIC (Central FD) and Orenburg (Volga FD), 8 influenza A(H3N2) viruses in Astrakhan (South FD), Ekaterinburg (Ural FD), Novosibirsk, Tomsk (Siberian FD) and Vladivostok (Far-Eastern FD) and 4 influenza B viruses in Novosibirsk (Siberian FD) and Vladivostok (Far-Eastern FD).
Percent of positive ARI cases of non-influenza etiology (PIV, adeno- and RSV) was estimated as 18.2% of investigated patients by IFA and 19.3% by PCR.
In sentinel surveillance system clinical samples from 100 SARI and ILI/ARI patients were investigated by rRT-PCR. As a result 10 (29.4%) of influenza cases were detected among 34 SARI patients, including 7 (20.6%) A(H1N1)pdm09 cases, 2 (5.9%) influenza A(H3N2) cases and 1 (2.9%) influenza B case. Among 66 ILI/ARI patients 28 (42.4%) influenza cases were detected including 22 (33.3%) influenza A(H1N1)pdm09 cases and 6 (9.1%) influenza A(H3N2) cases.

http://www.influenza.spb.ru/en/influenza_surveillance_system_in_russia/epidemic_situation/
 
Re: Russia ILI surveillance 2012-2013

Week 28.01.2013-03.02.2013

Influenza and ARI morbidity data

Epidemic thresholds of ILI and ARI were exceeded by 61.5-98.7% in 4 cities (Tomsk, Saratov, Ekaterinburg, Ufa) and by 31.6-46.0% in 10 cities (Birobidzhan, Izhevsk, Kaliningrad, Kemerovo, Novosibirsk, Samara, Syktyvkar, Ulyanovsk, Chelyabinsk and Cheboksary) of 59 ones collaborating with two WHO NICs in Russia.

Rus.gif

Cumulative number of diagnosed influenza cases

Cumulative results of influenza laboratory diagnosis by different tests were submitted by 54 RBLs. According to these data as a result of investigation of 3109 patients the overall proportion of respiratory samples positive for influenza virus was estimated as 21.6%, including 13.2% for influenza A(H1N1)pdm09 virus, 5.4% for influenza A(H3N2) virus, 0.6% for non-subtyped influenza A virus and 2.3% for influenza B virus. Thirty four influenza viruses were isolated this week including 13 influenza A(H1N1)pdm09 viruses in cities of 5 FD (Nort-Western, Central, South, Ural and Far-Eastern), 18 influenza A(H3N2) viruses in cities of 4 FD (South, Siberian, Far-Eastern and Nort-Western) and 3 influenza B viruses in cities of 3 FD (Central, Siberian and Ural).

...
Conclusion

Influenza and ARI morbidity data. Increased influenza activity was registered during the week 5.2013 in traditional surveillance system in Russia. The nationwide ILI & ARI morbidity level registered this week (85.6 per 10 000 of population) exceeded the national baseline by 27.9%.
Etiology of ILI & ARI morbidity. The overall proportion of respiratory samples tested positive for influenza was estimated as 21.6%, including 13.2% for influenza A(H1N1)pdm09 virus, 5.4% for influenza A(H3N2) virus, 0.6% for non-subtyped influenza A virus and 2.3% for influenza B virus. Thirty four influenza viruses were isolated this week including 13 influenza A(H1N1)pdm09 viruses, 18 influenza A(H3N2) viruses and 3 influenza B viruses. Percent of positive ARI cases of non-influenza etiology (PIV, adeno- and RSV) was estimated as 18.3% of investigated patients by IFA and 14.0% by PCR.
In sentinel surveillance system clinical samples from 109 SARI and ILI/ARI patients were investigated by rRT-PCR. As a result 23 (51.1%) of influenza cases were detected among 45 SARI patients, including 6 (26.1%) A(H1N1)pdm09 cases, 15 (65.2%) influenza A(H3N2) cases and 2 (8.7%) influenza B cases. Among 64 ILI/ARI patients 15 (23.4%) influenza cases were detected including 11 (73.3%) influenza A(H1N1)pdm09 cases and 4 (26.7%) influenza A(H3N2) cases
 
Re: Russia ILI surveillance 2012-2013

Week 04.02.2013-10.02.2013

Influenza and ARI morbidity data

Epidemiological data show increase of influenza activity in Russia in comparison with previous week. The nationwide ILI & ARI morbidity level registered this week (97.5 per 10 000 of population) exceeded the national baseline by 45.7%. ILI and ARI epidemic thresholds were exceeded by 28.9-76.2% in 24 cities of 59 ones collaborating with two WHO NICs in Russia.

Rus.gif

Cumulative number of diagnosed influenza cases

Cumulative results of influenza laboratory diagnosis by different tests were submitted by 54 RBLs. According to these data as a result of 3751 patients investigation the overall proportion of respiratory samples positive for influenza virus was estimated as 27.8%, including 17.6% for influenza A(H1N1)pdm09 virus, 7.5% for influenza A(H3N2) virus, 0.7% for non-subtyped influenza A virus and 1.9% for influenza B virus. Eighty five influenza viruses were isolated this week including 51 influenza A(H1N1)pdm09 viruses in different cities of 6 FD (Nort-Western, Central, South, Volga, Ural and Siberian), 24 influenza A(H3N2) viruses in cities of 4 FD (South, Siberian, Far-Eastern and Nort-Western) and 7 influenza B viruses in cities of 3 FD (Central, Siberian and Nort-Western).
...
Conclusion

Influenza and ARI morbidity data. Increased influenza activity was registered during the week 6.2013 in traditional surveillance system in Russia. The nationwide ILI & ARI morbidity level registered this week (97.5 per 10 000 of population) exceeded the national baseline by 45.7%.
Etiology of ILI & ARI morbidity. The overall proportion of respiratory samples tested positive for influenza was estimated as 27.8%, including 17.6% for influenza A(H1N1)pdm09 virus, 7.5% for influenza A(H3N2) virus, 0.7% for non-subtyped influenza A virus and 1.9% for influenza B virus. Eighty five influenza viruses were isolated this week including 51 influenza A(H1N1)pdm09 viruses, 24 influenza A(H3N2) viruses and 7 influenza B viruses. Percent of positive ARI cases of non-influenza etiology (PIV, adeno- and RSV) was estimated as 17.9% of investigated patients by IFA and 15.1% by PCR.
In sentinel surveillance system clinical samples from 126 SARI and ILI/ARI patients were investigated by rRT-PCR. As a result 19 (45.2%) of influenza cases were detected among 42 SARI patients, including 13 (68.4%) A(H1N1)pdm09 cases, 5 (26.3%) influenza A(H3N2) cases and 1 (5.3%) influenza B case. Among 84 ILI/ARI patients 25 (29.8%) influenza cases were detected including 21 (84%) influenza A(H1N1)pdm09 cases, 3 (12%) influenza A(H3N2) cases and 1 (4%) influenza B case.
 
Re: Russia ILI surveillance 2012-2013

Week 11.02.2013-17.02.2013

Influenza and ARI morbidity data

Epidemiological data show increase of influenza activity in Russia in comparison with previous week. The nationwide ILI & ARI morbidity level (103.7 per 10 000 of population) exceeded the national baseline by 55%. ILI and ARI epidemic thresholds were exceeded in 29 cities of 59 ones collaborating with two WHO NICs in Russia.

Rus.gif

Cumulative number of diagnosed influenza cases

Cumulative results of influenza laboratory diagnosis by different tests were submitted by 55 RBLs. According to these data as a result of 4966 patients investigation the overall proportion of respiratory samples positive for influenza virus was estimated as 28.7%, including 18.2% for influenza A(H1N1)pdm09 virus, 6.8% for influenza A(H3N2) virus, 1.6% for non-subtyped influenza A virus and 2.5% for influenza B virus. Forty one influenza viruses were isolated this week including 24 influenza A(H1N1)pdm09 viruses in different cities of 7 FD (North-Western, Central, South, Volga, Ural, Siberian and Far-Eastern), 4 influenza A(H3N2) viruses in cities of 2 FD (Siberian and North-Western) and 9 influenza B viruses in cities of 4 FD (South, Central, Siberian and North-Western).
...
Conclusion

Influenza and ARI morbidity data. Increased influenza activity was registered during the week 7.2013 in traditional surveillance system in Russia. The nationwide ILI & ARI morbidity level (103.7 per 10 000 of population) exceeded the national baseline by 55%.
Etiology of ILI & ARI morbidity. The overall proportion of respiratory samples tested positive for influenza was estimated as 28.7%, including 18.2% for influenza A(H1N1)pdm09 virus, 6.8% for influenza A(H3N2) virus, 1.6% for non-subtyped influenza A virus and 2.5% for influenza B virus. Forty one influenza viruses were isolated this week including 24 influenza A(H1N1)pdm09 viruses, 4 influenza A(H3N2) viruses and 9 influenza B viruses. Percent of positive ARI cases of non-influenza etiology (PIV, adeno- and RSV) was estimated as 15.6% of investigated patients by IFA and 12.8% by PCR.
In sentinel surveillance system clinical samples from 141 SARI and ILI/ARI patients were investigated by rRT-PCR. As a result 14 (29.8%) of influenza cases were detected among 47 SARI patients, including 9 (64.3%) A(H1N1)pdm09 cases and 5 (35.7%) influenza A(H3N2) cases. Among 94 ILI/ARI patients 19 (20.2%) influenza cases were detected including 10 (52.6%) influenza A(H1N1)pdm09 cases,6 (31.6%) influenza A(H3N2) cases and 3 (15.8%) influenza B cases.
 
Re: Russia ILI surveillance 2012-2013

Week 18.02.2013-24.02.2013

Influenza and ARI morbidity data

ILI and ARI epidemic thresholds were exceeded in 25 cities of 59 ones collaborating with two WHO NICs in Russia.

Rus.gif

Cumulative number of diagnosed influenza cases

Cumulative results of influenza laboratory diagnosis by different tests were submitted by 48 RBLs. According to these data as a result of 5079 patients investigation the overall proportion of respiratory samples positive for influenza virus was estimated as 29.7%, including 18.4% for influenza A(H1N1)pdm09 virus, 6.6% for influenza A(H3N2) virus, 1.1% for non-subtyped influenza A virus and 3.7% for influenza B virus. 124 influenza viruses were isolated this week including 58 influenza A(H1N1)pdm09 viruses in different cities of 4 FD (North-Western, Central, Volga, Ural), 41 influenza A(H3N2) viruses in cities of 5 FD (North-Western, Central, Volga, Siberian and Far-Eastern) and 25 influenza B viruses in cities of 5 FD (North-Western, Central, Volga, Siberian and Far-Eastern).
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Conclusion

Influenza and ARI morbidity data. No increase of influenza activity was registered during the week 8.2013 in traditional surveillance system in Russia. The nationwide ILI & ARI morbidity level (103.1 per 10 000 of population) exceeded the national baseline by 54.1%.

Etiology of ILI & ARI morbidity. The overall proportion of respiratory samples tested positive for influenza was estimated as 29.7%, including 18.4% for influenza A(H1N1)pdm09 virus, 6.6% for influenza A(H3N2) virus, 1.1% for non-subtyped influenza A virus and 3.7% for influenza B virus. 124 influenza viruses were isolated this week including 58 influenza A(H1N1)pdm09 viruses, 41 influenza A(H3N2) viruses and 25 influenza B viruses. Percent of positive ARI cases of non-influenza etiology (PIV, adeno- and RSV) was estimated as 15.7% of investigated patients by IFA and 12.4% by PCR.
In sentinel surveillance system clinical samples from 194 SARI and ILI/ARI patients were investigated by rRT-PCR. As a result 36 (42.9%) of influenza cases were detected among 84 SARI patients, including 12 (33.3%) A(H1N1)pdm09 cases, 15 (41.7%) influenza A(H3N2) cases and 9 (25%) influenza B cases. Among 110 ILI/ARI patients 32 (29.1%) influenza cases were detected including 15 (46.9%) influenza A(H1N1)pdm09 cases, 16 (50%) influenza A(H3N2) cases and 1 (3.1%) influenza B case.
Seven lethal influenza cases were registered in weeks 7 and 8 including 6 influenza A(H1N1)pdm09 cases and one non subtyped influenza A case. A total 15 lethal influenza cases were registered this season, all of them among adult patients.
http://www.influenza.spb.ru/en/influenza_surveillance_system_in_russia/epidemic_situation/
 
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