Now available: CDC’s on-demand, self-paced courses for #HCPs who administer #COVID19 vaccine. Three modules share what you need to know about immunization best practices, Moderna COVID-19 vaccine, and Pfizer-BioNTech COVID-19 vaccine. Learn more: https://t.co/8rh9yiRUnM. https://t.co/OmsbwNFVky