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. 2010 Jul-Aug;17(4):269-70.
doi: 10.1111/j.1708-8305.2010.00418.x.

Travel and age of influenza A (H1N1) 2009 virus infection

Hiroshi Nishiura  1
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Free article

Travel and age of influenza A (H1N1) 2009 virus infection

Hiroshi Nishiura. J Travel Med. 2010 Jul-Aug.
Free article

Abstract

Age distribution of 4,986 cases of influenza A (H1N1) 2009 in Japan was analyzed. Cases with a travel history within 10 days preceding the illness onset were significantly older than indigenous cases (p < 0.01) reflecting age-specific travel patterns. Border controls should account for the high frequency of infection among adults.

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