Low pathogenic avian influenza (poultry) H7N9, China (People's Rep. of) (OIE, April 16 2013): 5 samples positive in Zhejiang & Jiangsu

[Giuseppe]

[Source: OIE, full page: (LINK). Edited.]


Low pathogenic avian influenza (poultry), China (People's Rep. of)


Information received on 16/04/2013 from Dr Zhang Zhongqui, Director General , China Animal Disease Control Centre, Veterinary Bureau, Ministry of Agriculture, Beijing, China (People's Rep. of)

• Summary
  • Report type Follow-up report No. 3
  • Date of start of the event 04/04/2013
  • Date of pre-confirmation of the event 04/04/2013
  • Report date 16/04/2013
  • Date submitted to OIE 16/04/2013
  • Reason for notification New strain of a listed disease
  • Manifestation of disease Sub-clinical infection
  • Causal agent Low pathogenic avian influenza virus
  • Serotype H7N9
  • Nature of diagnosis Laboratory (basic), Laboratory (advanced)
  • This event pertains to the whole country
  • Related reports
    • Immediate notification (04/04/2013)
    • Follow-up report No. 1 (05/04/2013)
    • Follow-up report No. 2 (10/04/2013)
    • Follow-up report No. 3 (16/04/2013)
• New outbreaks (3)
  • Outbreak 1 - Zhebei live bird market, Huzhou, ZHEJIANG
    • Date of start of the outbreak 16/04/2013
    • Outbreak status Continuing (or date resolved not provided)
    • Epidemiological unit Not applicable
    • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
      • Birds - ? ? 1 ? 0 - ? ? 0
      • Affected population 1 sample from chicken
  • Outbreak 2 - Qinhuai, Qinhuai, Nanjing, JIANGSU
    • Date of start of the outbreak 16/04/2013
    • Outbreak status Continuing (or date resolved not provided)
    • Epidemiological unit Not applicable
    • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
      • Birds - ? ? 1 ? 0 - ? ? 0
      • Affected population 1 sample from wild pigeon
  • Outbreak 3 - Daoxiang live bird market, Huzhou, ZHEJIANG
    • Date of start of the outbreak 16/04/2013
    • Outbreak status Continuing (or date resolved not provided)
    • Epidemiological unit Not applicable
    • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed - Slaughtered
      • Birds - ? ? 3 ? 0 - ? - 0
      • Affected population 3 samples from chicken
• Summary of outbreaks
  • Total outbreaks: 3
    • Total animals affected: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
      • Birds - ? ? 5 ? 0 - ? ? 0
    • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
      • Birds ? ** ? ** - 0.00% ? **
      • *Removed from the susceptible population through death, destruction and/or slaughter
      • **Not calculated because of missing information
• Epidemiology
  • Source of the outbreak(s) or origin of infection
    • Unknown or inconclusive
• Epidemiological comments
  • Gene sequencing shows that it is Low pathogenic avian influenza virus (LPAI)
• Control measures
  • Measures applied
    • Control of wildlife reservoirs
    • Quarantine
    • Movement control inside the country
    • Screening
    • Zoning
    • Disinfection of infected premises/establishment(s)
    • Dipping / Spraying
    • No vaccination
    • No treatment of affected animals
  • Measures to be applied
    • Stamping out
• Diagnostic test results
  • Laboratory name and type ? Species ? Test - Test date ? Result
    • Harbin Veterinary research institute, Chinese academy of agricultural sciences (OIE?s Reference Laboratory) ? Birds - gene sequencing - 16/04/2013 ? Positive
    • Harbin Veterinary research institute, Chinese academy of agricultural sciences (OIE?s Reference Laboratory) ? Birds - haemagglutination inhibition test (HIT) - 16/04/2013 ? Positive
    • Harbin Veterinary research institute, Chinese academy of agricultural sciences (OIE?s Reference Laboratory) ? Birds - pathogen isolation by egg inoculation - 16/04/2013 ? Positive
    • Harbin Veterinary research institute, Chinese academy of agricultural sciences (OIE?s Reference Laboratory) ? Birds - reverse transcription - polymerase chain reaction (RT-PCR) - 16/04/2013 ? Positive
• Future Reporting
  • The event is continuing. Weekly follow-up reports will be submitted.

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[Ronan Kelly]

Re: Low pathogenic avian influenza (poultry) H7N9, China (People's Rep. of) (OIE, April 16 2013): 5 samples positive in Zhejiang & Jiangsu

Ministry of Agriculture in the submitted sample from Jiangsu and Zhejiang 5 copies of the H7N9 avian influenza positive samples detected
Date :2013 -04-16 15:19 Author: Source: Information Office of the Ministry of Agriculture

　　NEEDHAM Ministry of Agriculture office April 16, Jiangsu and Zhejiang animal disease prevention and control center detected 12 were suspected positive samples, and review by the National Avian Influenza Reference Laboratory, 5 were positive for H7N9 avian influenza which the feral pigeons samples from the Qinhuai District of Nanjing, Jiangsu Province, and 1 part chicken samples from the north of Zhejiang Huzhou City, Zhejiang Province, agricultural and sideline products wholesale center, 3 servings of chicken samples from Huzhou, Zhejiang Wuxing the dojo Township farmers market. Gene sequence analysis showed that all of the above isolates isolated from pigeons and April 4, H7N9 avian influenza virus strains are highly homologous.

　　The Ministry of Agriculture has asked the Jiangsu and Zhejiang provinces to strictly do the work to deal with in accordance with the Ministry of Agriculture, Animal H7N9 avian flu emergency response guide (Trial) ". At the same time, requiring further expand the scope of monitoring of the H7N9 avian flu virus, and earnestly implement various prevention and control measures.

http://www.moa.gov.cn/zwllm/zwdt/201304/t20130416_3435588.htm

[kiwibird]

Re: Low pathogenic avian influenza (poultry) H7N9, China (People's Rep. of) (OIE, April 16 2013): 5 samples positive in Zhejiang & Jiangsu

Have not found another source to corroborate this one but it mentions ducks and chickens having LPAI H7N9 and also slightly different location of Anhui. It also states no birds were slaughtered or destroyed - so I am wondering if they were left in the market and sold for food? http://www.thepoultrysite.com/poultr...n-duck-samples

NB// date is April 11th, 2013