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Influenza B is now predominant strain, as flu cases continue to fall

BMJ 2011; 342 doi: http://dx.doi.org/10.1136/bmj.d610 (Published 28 January 2011) Cite this as: BMJ 2011;342:d610
  1. Matthew Billingsley
  1. 1BMJ

Influenza B has now taken over from influenza A H1N1 (swine flu) as the most dominant strain in circulation in the United Kingdom, although the overall number of flu cases has fallen substantially in the past week, show figures from the Health Protection Agency.

The number of confirmed deaths from seasonal flu rose to 338 in the week to 27 …

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