If a patient's family was traveling to Africa or Asia, he would check the latest CDC vaccine recommendations for overseas travel. Yet even doctors began losing trust, Snyder said, after Donald Trump was elected president again. Some doctors are launching their own vaccine education efforts, sometimes in collaboration with local public health departments. Still, she said it's the first time she's had to contradict health information from the CDC. And governors of 14 states and Guam set up the Governors Public Health Alliance in response to declining trust in federal health agencies.