Alva Review-Courier -

Experts: Herd immunity outside US slows Zika in Florida


August 13, 2017

MIAMI (AP) — The waning of Zika outbreaks in the Caribbean and South America has helped slow the spread of the mosquito-borne virus in Florida this year, according to health officials.

Herd immunity, when enough people in an area are infected with a virus and develop resistance to it, likely has contributed to Zika's decline outside the continental United States, Dr. Henry Walke, the U.S. Centers for Disease Control and Prevention's incident manager for Zika response, said in a Miami Herald report .

"People that were infected before can't be infected again. That's our understanding," Walk...

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