No, a vaccine campaign did not cause the Gaines County, Texas, measles case spike
PolitiFact, Feb. 28, 2025
UTMB’s Dr. Philip Keiser helped PolitiFact debunk the idea that the West Texas measles outbreak was started by vaccinated individuals shedding measles virus. Keiser told PolitiFact there’s no scientific literature supporting the notion that a vaccine virus shed from someone who is vaccinated would be transmissible. This news was also shared by Poynter and the Austin American-Statesman.