As the race for the COVID-19 vaccine continues, those in the trials for both Moderna and Pfizer are describing the side effects. "We can tell you down to a five-digit level how many individuals are vulnerable to hospitalization that live in that five-digit zip code," he added. Here in the Bay Area, the numbers of projected hospitalizations are high. Data shows more than 50,000 in Sonoma County, 43,000 plus in San Francisco and more than 111,000 in Alameda County. A person's age and medical history are factored in and more. "It incorporates a number of factors, the place where you live, the absence of pharmacies, food deserts in your area and air quality," said former Blue Cross of California Chief Medical Officer Dr. Meredith Matthews.