New WHO Criteria To Qualify Flu Viruses As Pandemic Strains
November 4, 2009 by Medical News
Filed under Health News
An editorial published today in BMJ Clinical Evidence reports that more flu viruses could qualify as pandemic strains as a result of recent changes to the World Health Organisation (WHO) criteria for a flu pandemic. A change from, for example, A [H2N2] influenza to A [H3N2] is a process known as a “shift”.
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