Texas has identified the first instance of a laboratory-confirmed Zika infection in a pregnant Texas resident who did not travel outside the state. The woman, a resident of Bexar County, traveled to Brownsville in November, around the time six Brownsville residents acquired cases of Zika virus disease from mosquitoes there. She did not get sick and was tested for Zika during regular prenatal care. Because the infection was not transmitted in Bexar County, it does not represent an increased risk of Zika there.
The infection could have been transmitted by mosquitoes or through sexual contact with a partner who was infected. Health officials urge everyone, especially pregnant women, to continue to protect themselves from mosquito bites when visiting Brownsville and other parts of the state where mosquito activity continues throughout the winter months. Pregnant women should also protect themselves against sexual transmission from partners who travel to those areas by avoiding sexual contact or using condoms for the duration of the pregnancy.