Updated: 12:44 PM EDT Mar 15, 2021 Updates on the COVID-19 pandemic in Massachusetts including coronavirus vaccinations, new cases and hospitalizations are posted every afternoon using data provided by the Massachusetts Department of Public Health. All three vaccines with emergency authorization from the U.S. Food and Drug Administration have now arrived in Massachusetts for distribution. The newest, from Johnson & Johnson, is a single-dose vaccine. COVID-19 VACCINATION DATABecause of the limited number of available vaccine, Massachusetts Gov. Charlie Baker announced a plan for a phased distribution of the doses. Vaccines are distributed through a variety of location types, including mass vaccination sites overseen by state contractors and local pharmacies. Vaccine FAQ State directory of vaccination sites Additionally, the CDC has created a prevaccination checklist that collects important information for vaccine providers.The first vaccines were administered in Massach