Alert unusual outbreak of influenza this year is not the A-H1N1, but other strains of the disease such as influenza B and A-H3N2.

[Tonka]

http://www.australtemuco.cl/prontus4_noticias/site/artic/20100904/pags/20100904000312.html

Spanish to English translation

Alert unusual outbreak of influenza this year is not the A-H1N1, but other strains of the disease such as influenza B and A-H3N2.


Moraga towers Carolina

For the first time in many emergency departments and doctors' offices have collapsed in September.

The reason? An unusual late outbreak of respiratory disease, primarily influenza, which reached its peak during the week. However, unlike last year, is not the A-H1N1 pandemic virus that is causing havoc. In this 2010, are other influenza strains that have predominated, including the type B, the A-H3N2 and seasonal influenza.

to triple

As reported by the physician assistant Hernan Henriquez Aravena Hospital of Temuco, Enrique Bellolio, during the last week visits for respiratory causes increased threefold in the emergency care center.

"We have experienced the peak weeks of unusual attention in September. From the third week of this month, should be a decrease in the curve and the cases should decrease," he said.

In his view, this outbreak is delayed result of the intense cold in August that resulted in an increased respiratory consultations during the previous and the present week.

alert

While waiting for a second wave of human influenza this winter, which keeps the epidemiological alert is the occurrence of other types of influenza such as A-H3N2, B and seasonal. This is indicated by the Health SEREMI Araucan?a, Gloria Rodriguez, who said several factors may be influencing this late peak consultations.

"This year we succeeded in halting the appearance of A-H1N1 virus vaccine product. So what is emerging viruses are endemic always present in the population," he said.

As for the differences between them, Rodriguez said that practically do not exist. "The symptoms are the same, ie about 38.5 degrees fever and cough. These symptoms may be accompanied or not muscle aches, headache and sore throat."

Faced with the current scenario, the authority said it has asked the ministry to extend the winter season in order to maintain funding for strengthening the sapus attention both in the primary health care, as well as in cinemas and ERA IRA.

"We think that this week we are at the peak, so the next should begin to decrease the number of cases, according to reports we have received from the WHO," said
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[Giuseppe]

Re: Alert unusual outbreak of influenza this year is not the A-H1N1, but other strains of the disease such as influenza B and A-H3N2.

According the most recent weekly epidemiological report from Chile Ministry of Health (WK 34), there were the following isolates:

(see the complete report (in Spanish): http://www.flutrackers.com/forum/sho...d.php?t=152008 )

Surveillance Network Positive Samples Results

[Cumulative Number of positive samples (weeks 1-34) - Current Week, 34]

* Total Number of Samples Collected - 19.494 - 1.272
o Samples Positive (%) - 6.045 (31%) - 453 (35,6%)
+ RSV - 3.985 (66%) - 196 (43,3%)
+ Adenovirus - 244 (4%) - 4 (0,9 %)
+ Parainfluenza - 556 (9,2%) - 49 (10,8%)
# Influenza A
* Influenza A (H3N2) Seasonal - 196 (3,2%) - 42 (9,3%)
* Influenza A Not Subtyped - 428 (7,1%) - 103 (22,7%)
* Pandemic Influenza H1N1 2009 - 502 (8,3%) - 24 (5,3 %)
# Influenza B - 109 (1,8%) - 37 (8,2%)

(...)

Of 1272 samples collected during Week 34, 103 were positive for Influenza A (unsubtyped), 24 were Influenza A(H1N1) 2009 pandemic strain (both these strains account for 127 isolates), 37 were Influenza B and 42 Influenza H3N2 seasonal.

Of 204 Influenza A/B positive samples, the relative percentages are: 20.5% (H3N2), 50.4% A unsubtyped, 11.7% H1N1 (2009), and 18.13% B. (IOH)
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