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Scientists identified the Zika virus in the saliva and urine of two infected patients, a top Brazilian biomedical research institution said on Friday, prompting its president to urge pregnant women not to kiss strangers just as local carnival celebrations begin.
The discovery added to the rising concern over Zika, which is spreading rapidly in the Americans and has been linked to thousands of severe birth defects in Brazil.
They said they used genetic testing to identify the virus in saliva and urine samples from two patients who had symptoms caused by Zika infection, and determined that the virus was active, meaning it had the potential to cause infection, scientists at the public Oswaldo Cruz Foundation said.
Brazil finds Zika in saliva, urine; expert warns against kissing