Scientists at Parana University in Brazil say they have found more evidence linking the growing Zika epidemic to microcephaly in babies. Doctors have reportedly discovered the mosquito-borne virus still present in the brains of two babies who only lived for about 48 hours. Brazil has so far reported about 460 confirmed cases of microcephaly, a condition marked by incomplete brain development and a smaller than average head. The country is investigating nearly 4,000 more suspected cases. Physicians say mounting evidence points to a connection between the virus and the condition, both of which have increased through Latin America, hitting Brazil the hardest.