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West to East Phenomenon |
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West to East Phenomenon A seasonal fluctuation in the annual rotavirus epidemic in North America, which reaches a maximum in Mexico and the Southwestern US in late fall; midwestern US peaks in mid-winter; eastern US and Canada peak in early spring. A similar west-to-east wave has been reported for influenza in older adults with the peak incidence in Los Angeles occurring in December and in New York City in February Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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