[Source: US Centers for Disease Control and Prevention (CDC), FluView, full page: (LINK). Extract, edited.]

November 16 2012

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Novel Influenza A Virus:

No new novel influenza A virus infections were reported to CDC during week 45.

A total of 310 infections with variant influenza viruses (306 H3N2v viruses, 3 H1N2v viruses, and one H1N1v virus) have been reported from 10 states from July 2012 through September 28, 2012 with September 7 being the most recent date of illness onset in a confirmed case.

The vast majority of cases have occurred after exposure to swine, though instances of likely human-to-human transmission have been identified.

No ongoing human-to-human transmission has been identified.

More information about the H3N2v outbreaks can be found at http://www.cdc.gov/flu/swineflu/h3n2v-outbreak.htm.

Additional information on influenza in swine, variant influenza infection in humans, and precautionary measures recommended during interactions with swine can be found at http://www.cdc.gov/flu/swineflu/index.htm.

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