Figure 1. Hospitalized patients with confirmed or probable pandemic (H1N1) 2009, by date of onset, New York, New York, USA, April 24–July 7, 2009. Onset date was missing for 98 patients with confirmed pandemic (H1N1) 2009 and 16 with probable pandemic (H1N1) 2009. Surveillance data as of August 25, 2009.
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