# 4662
Data from the GISN (Global Influenza Surveillance Network) understandably runs about 10 days behind their reporting, simply because it takes time to collect, collate, and package this information.
So the data we have right now is current through the 5th of June.
As you will see from the latest WHO (World Health Organization) Virological Surveillance report, and the following graph and map, that the flu strains currently circulating vary considerably around the world.
Somewhat surprisingly, the H3N2 virus - which has pretty much disappeared from North America and European reporting - continues to show up in parts of Africa, Russia, and China.
Weekly virological surveillance update
18 June 2010 -- Overall influenza activity has remained at low levels in most parts of the world. While, in most countries where human infection of influenza virus was reported, the pandemic influenza A(H1N1) continues to be the predominating influenza A viruses subtyped (70.8% globally), in some countries in Africa, however, the proportion of A(H3N2) virus detections increased.
Sporadic influenza A(H3N2) activity was reported from China and Russian Federation and several countries from Africa. Influenza B viruses continued to be predominating in some countries and areas, including Hong Kong SAR of China (70.9% of all influenza detections), Russian Federation (96.1%) and Ukraine (100%). Sporadic influenza B activity has also been observed in some other countries.
Based on FluNet reporting for the week from 30 to 5 June 2010, the total number of specimens reportedly positive for influenza viruses by National Influenza Centres (NICs) from 24 countries was 351. Of these, 112 (31.9%) were typed as influenza A and 239 (68.1%) as influenza B.
As the chart below indicates, flu activity is currently low around the globe, with Influenza B being the most widely detected flu strain.
The map below shows that North America continues to see almost exclusively Influenza A, while it is Influenza B that is most common in Asia, India, and Russia.
The outlier here is eastern Africa, where seasonal H3N2 continues to hang on.
What this bodes for the flu’s return in the fall is unknown. But we will watch over the coming weeks to see how things trend.
Related Post:
- Global Flu Surveillance Updates
- WHO: 2012 World Health Statistics Report
- Japan: Quake/Tsunami Risks Greater Than Previously Thought
- DFID: World Unprepared For Future Shocks
- The Birth Of The Flus
- WHOSIS: World Health Statistics 2011
- Global Influenza Activity: Week 52
- Global Influenza Report: Week 42
- Global Flu Activity Update
- Global Flu Activity Update
- ECDC: Global Vaccine Goals And Realities
- Global Flu Trends: Week 24
- Canada: FluWatch Week 52
- CDC Statement On This Year’s Flu Activity
- FluView Week 49
- Early Flu Cases Begin To Emerge
- Global Flu Surveillance Updates
- ISDH Statement On H3N2v
- The 2012 Flu Season Down Under
- Hong Kong’s Extended Flu Season
- WER: Reviewing The 2011-2012 Northern Hemisphere Flu Season
- Northern Hemisphere Flu Activity Declines
- CDC: FluView Week 14
- CDC: FluView Week 10
- CDC Telebriefing On Influenza
- CDC: On The Slow Start To The Flu Season
- CDC FluView & ECDC WISO: Flu Activity Remains Low
- The `Flu Near You’ Survey
- Week 41 Flu Activity & Flu Shot Finder
- The Flu Season Down Under
- Australia: Flu Season Nearing Peak - ISG
- WHO: Influenza Update Week 24
- The WHO’s Flu Review
- Portrait Of A Flu Season In Decline
- North America Flu Surveillance Week 8
- North American Flu Surveillance: Week 7
- ECDC: European Flu Surveillance Week 6
Widget by [ Iptek-4u ]