The World Health Organisation (WHO) recommended on Thursday that the pandemic A(H1N1) virus should be used for making seasonal influenza vaccines in the northern hemisphere.

Besides the pandemic A(H1N1) virus, the A(H3N2) virus and the influenza B virus should also be included in making influenza vaccines in the 2010 — 2011 northern hemisphere influenza season, the U.N. agency said in a statement. The recommendation was announced following a four-day closed-door meeting of influenza experts, which was meant to select the seasonal vaccine strains for the northern hemisphere. — Xinhua

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