Health officials in the Florida Keys issue a dengue fever alert (nbcnews.com)

A dengue fever alert has been issued in the Florida Keys following two confirmed cases of the mosquito-borne illness.

The local warning comes a week after the Centers for Disease Control and Prevention issued a national advisory about the increased risk of dengue virus infections in the United States.

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Signs of avian flu found in San Francisco wastewater Signs of H5N1 bird flu virus have been detected at three wastewater sites in California's Bay Area, according to sampling data. Medical Xpress

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While positive wastewater samples have been found in seven other states, California is the only one that has yet to report a bird flu outbreak in a herd of dairy cows.

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Bird flu news today: Avian flu symptoms in humans, CDC H5N1 milk warning and avian influenza vaccine | AMA Update Video | AMA (ama-assn.org)

Dengue fever map: Where the mosquito-driven disease is confirmed, spreading fastest

NEXSTAR) – Federal health officials warned doctors around the U.S. this week to look out for signs patients may have dengue fever, a virus spread by mosquitoes that’s surging worldwide. Cases in the U.S. are three times higher than this time last year.

Most of the cases in the U.S. are in people who recently traveled abroad to regions where dengue is spreading quickly. Only one state so far, Florida, has evidence of local transmission, the Centers for Disease Control and Prevention says. U.S. territories Puerto Rico and the Virgin Islands are also seeing local spread of the disease.

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