A western lowland gorilla and baby at a Chicago zoo.Photo: EPA A western lowland gorilla and baby at a Chicago zoo.Photo: EPA
A western lowland gorilla and baby at a Chicago zoo.Photo: EPA

Gorillas identified by scientists as source of lethal HIV virus strain

A western lowland gorilla and baby at a Chicago zoo.Photo: EPA A western lowland gorilla and baby at a Chicago zoo.Photo: EPA
A western lowland gorilla and baby at a Chicago zoo.Photo: EPA
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