61/83 (73.5%) of the mothers reported more than 1 symptom—fever, rash, arthralgia, itch, conjunctival hyperaemia; 64 (77.1%) reported maculopapular rash.57.4% (35/83) of the infants had severe microcephaly.ZIKV IgM in CSF was tested in 14 infants (12 were positive).Among 12 infants who were ZIKV lab-confirmed positive, 10 (83.3%) of the mothers reported rash. The gene discussed is CD40LG; the disease is microcephaly.