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Number of Swine Flu Cases in U.S. Exceeds 2,500

Last Updated: May 11, 2009.

The United States has surpassed Mexico to become the nation with the most confirmed cases of influenza A (H1N1), according to figures released May 11 by the World Health Organization.

MONDAY, May 11 (HealthDay News) -- The United States has surpassed Mexico to become the nation with the most confirmed cases of H1N1 swine flu, according to figures released May 11 by the World Health Organization (WHO).

More than 2,500 cases of H1N1 have been confirmed in the United States, including three deaths. All three people who died had underlying medical conditions. On May 10 the WHO said that there have been 2,532 confirmed cases of H1N1 in 44 states, including 104 hospitalizations, with most cases being mild.

According to the U.S. Centers for Disease Control and Prevention (CDC), most new cases of H1N1 in the United States are transmitted from person to person and not via a link to Mexico, which is believed to be the source of the outbreak. The virus is susceptible to Tamiflu and Relenza, according to the CDC, but officials are warning that the outbreak is far from over.

"I want to address an issue that's been concerning me, that has to do with a sense of having dodged a bullet, a sense that this is over," Richard E. Besser, M.D., the CDC's acting director, said during a May 8 teleconference. "While we have seen a lot of encouraging news in terms of severity, we continue to see hundreds and hundreds of new cases each day."

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