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Zika Virus

Brazil: Zika infections from blood transfusions

4 Feb, 2016

Brazilian health officials say they have confirmed two cases of transmission of Zika through transfusions of blood from donors. Doctors say 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.

The two cases can be considered transmission of the virus through blood transfusion, with greater certainty in the first because we did genetic sequencing comparing the virus in the donor and to the virus in the recipient.