(CIDRAP News) Australian public health officials yesterday reported a cluster of oseltamivir (Tamiflu)-resistant 2009 H1N1 infections, one of the largest to date, centered in one region of New South Wales state.
(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) When the World Health Assembly (WHA) considers the fate of the remaining stocks of smallpox virus this week, the debate is likely to be framed in part by a report from a group of independent experts that says the only strong reason for keeping the virus is to satisfy strict regulatory requirements for new vaccines and antivirals.
(CIDRAP News) A recent case-control study estimates that the adjuvanted pandemic H1N1 influenza vaccine used in Canada was effective 93% of the time, a substantially higher figure than seen in several other studies and one that has raised some eyebrows among other flu vaccine researchers.
(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.