Two People Contract Zika Through Blood Transfusions in Brazil

The CDC also updated its interim guidance for health care providers in the USA who are caring for pregnant women and women of reproductive age with possible Zika virus exposure.

Puerto Rico Governor Alejandro Garcia Padilla on Friday declared a public health emergency because of the mosquito-borne Zika virus, a government statement said.

Scientists are still trying to determine, for instance, how long the virus remains in the semen of a man who has recovered from Zika.

Zika is spread by mosquitoes and in most people causes no more than mild illness.

The CDC previously recommended pregnant women who have traveled to affected areas and displayed symptoms of Zika virus be tested within two weeks.

It did not release the woman's name, saying she was one of seven confirmed cases in Spain.

Columbian authorities have confirmed the deaths of patients infected with the virus who had contracted Guillain-Barré syndrome - a related disease that attacks the nervous system.

"We're not aware of any mosquito disease associated with such a potential devastating birth outcome on a scale anything like what appears to be occurring with Zika in Brazil", Frieden said.

And while other viruses such as the human immunodeficiency virus (HIV) and the hepatitis virus can be transmitted through saliva, those are not the main ways those viruses spread, Schaffner said.

The World Health Organization recognized the first local transmission of Zika in the Western Hemisphere in May 2015 and by January local transmission had been identified in South America, Central America, Mexico and the Caribbean.

Last week, Brazilian President Dilma Rousseff and her US counterpart Barack Obama talked about jointly developing a vaccine against Zika. However, news of Zika virus did not become widespread until mid-January 2016 when a Zika-infected baby was born in Hawaii with microcephaly.

It cites three cases of infected males showing symptoms who transmitted the virus.



Other news