1) Two pregnant women in Brazil were diagnosed with fetal microcephaly and found to be infected with the Zika virus based on amniocentesis testing, representing the first cases of intrauterine transmission.
2) Ultrasound examinations of the two fetuses showed brain abnormalities including calcifications and structural malformations consistent with a viral infection.
3) The Zika virus outbreak in Brazil may be linked to an increase in microcephaly cases, with mounting evidence the virus can be transmitted from mother to fetus during pregnancy and cause fetal brain damage and microcephaly.