(CIDRAP News) – The world registered fewer human infections with H5N1 avian influenza in 2012, but the fatality rate was a little higher than in previous years, the World Health Organization (WHO) noted in a recent review of the year's data.
(CIDRAP News) At almost the same moment today that the World Health Organization announced recognition of an influenza pandemic, researchers from Hong Kong, the United Kingdom and the United States declared that the novel H1N1 virus responsible has been circulating undetected in humans for monthsand that its components have been present in pigs for at least a decade.
(CIDRAP News) Government officials and researchers may have underestimated the potential role of pigs as "mixing vessels" for influenza viruses and the importance of swine surveillance for identifying new pandemic threats, veterinary experts from Mexico asserted recently.
(CIDRAP News) Officials from the US Centers for Disease Control and Prevention (CDC) today unveiled the first comprehensive analysis of the novel H1N1 influenza virus, shedding some light on its source, which appears to be pigs in an area where surveillance gaps exist.
The World Health Organization (WHO) listed a global total of 2,500 confirmed cases of swine influenza H1N1 in 25 countries today. That total included 1,204 cases in Mexico, 896 cases in the United States (yesterday's number), 214 in Canada, 88 in Spain, and 34 in the United Kingdom. The death toll remains at 44, including 42 in Mexico and 2 in the United States. [WHO update 22]
The global count of confirmed H1N1 swine influenza cases rose to 1,658 in 23 countries, with 30 deaths, the World Health Organization (WHO) reported at a briefing today. Mexico continued to lead the list with 946 cases. [May 6 WHO swine flu update]