AVOID MOSQUITOES: Summer Travel and the Zika Virus. “Health officials have warned pregnant women to avoid travel to the more than 45 countries and territories in which the Zika virus is circulating. Infection during pregnancy can lead to birth defects in infants, particularly brain damage and abnormally small heads, called microcephaly. . . . The travel situation will become more complicated if locally transmitted cases are discovered in the continental United States. As of Friday afternoon, two possible cases are under investigation in Florida.”