The Massachusetts Department of Public Health has advised that even a "fully vaccinated person should wear a mask or face covering when indoors (and not in your own home) if you have a weakened immune system, or if you are at increased risk for severe disease because of your age or an underlying medical condition, or if someone in your household has a weakened immune system, or is at increased risk for severe disease, or is an unvaccinated adult." If you suffer from one of these co-morbidities you should consider wearing a mask in Church. DPH continues to advise that unvaccinated individuals should always wear a mask when indoors and not in their own home.