Coronavirus Vaccine FAQ At Baystate Health, we are following the guidance of the CDC and MA Department of Public Health and offering the COVID-19 vaccines along with information about what to expect before, during, and after your shot. Find the answers to your questions here: COVID-19 vaccination & pregnancy Vaccine booster shots Vaccine cards & documentation What to know before your shot What to expect at your appointment What to expect after your shot Screening mammograms & other medical procedures Help scheduling an appointment