Cleane Stephanny Silva, 18, brushes the hair of her one-month-old cousin, Maria Eduarda, who was born with microcephaly in Brazil.Cleane Stephanny Silva, 18, brushes the hair of her one-month-old cousin, Maria Eduarda, who was born with microcephaly in Brazil. The parents of Maria Eduarda, who are extremely poor, did not want the baby so Cleane and an aunt will raise her. The mosquito-borne Zika virus can cause a distinctive pattern of birth defects (called congenital Zika syndrome) which includes severe microcephaly, brain damage and eye abnormalities.