Zika

New York attorney general targets phony Zika protection products

In this Jan. 18, 2016 file photo, a researcher holds a container with female Aedes aegypti mosquitoes at the Biomedical Sciences Institute in the Sao Paulo's University in Sao Paulo, Brazil.

In this Jan. 18, 2016 file photo, a researcher holds a container with female Aedes aegypti mosquitoes at the Biomedical Sciences Institute in the Sao Paulo's University in Sao Paulo, Brazil.  (AP Photo/Andre Penner, File)

New York state's top prosecutor said on Wednesday his office has sent cease-and-desist letters to seven companies accused of deceptively marketing ineffective "Zika-protective" products amid growing concern over the mosquito-borne virus.

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Attorney General Eric Schneiderman also issued a consumer alert warning against the companies' advertisements, which are mainly for ultrasonic and botanical oil-based mosquito repellants. Those products "simply don't work," Schneiderman told a news conference.