# 4175
The ECDC (European Centre For Disease Prevention & Control) releases an update each Monday morning that covers the pandemic-related events of the past 72 hours (since Friday’s update).
While the H1N1 virus is on the decline in much of Europe, there are still a few countries where the levels are still high or very high.
ECDC influenza A (H1N1) UPDATE
21 December 2009
Epidemiologic update
Weekly Influenza Surveillance Overview and Officially Reported Deaths in the EUThe Weekly Influenza Surveillance Overview which presents data from the European Influenza Surveillance Network (EISN) was published on December 18th covering the period December 7th to 13th.
Most countries are witnessing medium influenza intensity with only five reporting high to very high levels. In the majority of countries, activity is however still widespread. Nineteen countries reported decreasing rates of influenza-like illness or acute respiratory infection for at least the last two weeks and the proportion of sentinel respiratory specimens positive for pandemic influenza continued to decline.
The 2009 pandemic influenza A(H1N1) virus strain still accounts for 99% of all subtyped viruses in sentinel patients. Oseltamivir resistance was found in only one percent of pandemic influenza viruses tested in the countries reporting to EISN.
Sentinel and non-sentinel specimens have been tested for respiratory syncytial virus (RSV) in 11 countries reporting to EISN. Overall RSV detections are increasing as expected at this time of the year and countries should be on the alert for this virus.
