(CIDRAP News) Researchers who combed through scores of serologic studies estimate that the global cumulative incidence of pandemic H1N1 influenza infection before vaccines became available was probably below 20%, far lower than the 50% that pandemic planners had envisioned as a possible worst case.
(CIDRAP News) Flu activity is increasing in many of the Northern Hemisphere's temperate-zone countries, with influenza B cocirculating with the 2009 pandemic H1N1 virus across Europe and teaming up with influenza A (H3N2) in the United States and Canada, the World Health Organization (WHO) said in its latest update.
(CIDRAP News) In an update on H1N1 influenza activity, the World Health Organization (WHO) said today that 168 countries and territories on all continents have now had cases and that the new virus increasingly dominates the flu landscape.
(CIDRAP News) European health officials today reported signs of an increasing rate of resistance to oseltamivir (Tamiflu) in Europe's predominant subtype of influenza virus, but they cautioned that the rate seen in isolates tested so far may not reflect the real situation.
(CIDRAP News) An international team of experts has concluded that the H5N1 avian influenza virus in Vietnam has not recently improved its ability to spread to or among humans, according to news reports published today.
The finding suggests that the immediate risk of a flu pandemic is lower than previously believed, according to an Agence France-Presse (AFP) report.