HHS.gov @HHSGov
Community (or herd) immunity is when enough members of a community are immunized against a contagious disease, keeping most others protected. One of the ways to help start community immunity is by getting a #COVID19 vaccine when it’s your turn: https://t.co/PJHYWfNJyW. https://t.co/ObPQ2nQ04k — PolitiTweet.org