Skip to main content Bay Area counties open vaccines to all adults with disabilities and health conditions, but access is spotty FacebookTwitterEmail Christina Ramirez places a bandage on the newly vaccinated arm of homeless man Robert Clayton Kerfoot, 57, at a mobile clinic in Martinez.Gabrielle Lurie / The ChronicleShow MoreShow Less 2of5 Denise Porter, 47, who is currently experiencing homelessness, waits the 15-minute period after receiving her COVID-19 vaccine in Martinez.Gabrielle Lurie / The ChronicleShow MoreShow Less 3of5 B 4of5 Health care workers including Christina Ramirez (right) pack up their mobile clinic for the day after administering COVID-19 vaccines to the homeless community in Martinez.Gabrielle Lurie / The ChronicleShow MoreShow Less