In-Depth: Vaccine expansion causes concern for doctors Supply issues, exceptions leave doctors in doubt As more people become eligible for the COVID-19 vaccine, doctors in San Diego have some concerns that supply won't keep up and that exceptions to the rules will put them in the position of having to decide who gets a shot and who doesn't. and last updated 2021-02-25 10:48:10-05 SAN DIEGO (KGTV) -- Doctors in San Diego worry that expanding COVID-19 vaccine eligibility too fast could lead to unintended consequences. "When you increase the pool by so many people, it's going to be a crunch for those of us vaccinating to serve all these people," says Dr. Christian Ramers of Family Health Centers of San Diego.