Wednesday, 17 April 2013

Looking like Shanghai contributed 6 cases overnight.

However, dates are scant and patchy so I have not further updated the charts yet. I'm hoping for some clear data later in the day. 

New retrospective test results have appeared - these comprise serological data for two cases (seroconversion to influenzavirus can take 12-21d which may vary further in the elderly or those with immunocompromise) and culture isolations for two cases as well as two deaths. 

Why PCR did not pick up the H7N9 in the cases from which virus was isolated? Unclear and surprising.

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