Print After months of overwhelming vaccine demand in San Diego County, some local health systems are turning down doses. Others are asking for less vaccine. That would have seemed unthinkable a few months ago, when San Diegans scoured the Internet for appointments, spent hours locked in bumper-to-bumper traffic and lined up late into the evening outside immunization sites — all in the name of getting a COVID-19 vaccine. But that was then. This is now. The balance of vaccine supply and demand has shifted drastically. The county, health systems and smaller providers now must figure out the best way to get shots into the arms of San Diegans who are more ambivalent — and, in some cases, more hesitant — than those who’ve already been inoculated.