(CIDRAP News) – Many Northern Hemisphere countries, from North America to temperate Asia, have seen rising flu activity in recent weeks, while cases ebbed or remained scarce in most of the rest of the world, the World Health Organization (WHO) said today.
(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.