Brazilian health officials said on Thursday they have confirmed two cases of transmission of Zika through transfusions of blood from donors who had been infected with the mosquito-borne virus that is spreading rapidly through the Americas. Marcelo Addas Carvalho, director of the Blood Center at the Sao Paulo state University of Campinas, said genetic testing confirmed that a man who received a blood transfusion using blood from a donor with Zika in March 2015 became infected with the virus, although the patient did not develop symptoms.

Earlier, the health department of Campinas, an industrial city near Sao Paulo, said a man with gunshot wounds became infected with Zika after multiple blood transfusions in April 2015 that included blood donated by an infected person. FULL REPORT