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ECDC rapid risk assessment: Human cases of swine influenza without apparent exposure to pigs, United States and Mexico

Risk assessment
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On April 21, the United States reported on the existence of 2 human cases of swine influenza A (H1N1) infection. On 23 April, through intensified surveillance efforts, a total of 7 confirmed human cases of swine influenza A (H1N1) infection, were reported.

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090424_TER_Influenza_AH1N1_TA_Swine_influenza_US-Mexico.pdf - EN - [PDF-66.54 KB]