https://www.mercurynews.com/2021/11/10/santa-clara-county-urges-covid-vaccine-booster-for-all-adults/ > When federal health authorities authorized COVID-19 vaccine boosters in September, they said the extra shots should be given to older adults or people at high risk. But Santa Clara County health officials took that a step further Wednesday, saying they will give any adult vaccinated six or more months ago another dose. > It was a bold pronouncement that once again puts Santa Clara County at the forefront of battling the virus, with a more generous interpretation of the federal and state booster eligibility guidelines than is being used elsewhere.