COVID-19 (coronavirus disease 2019) is a disease caused by a virus named SARS-CoV-2. It can be very contagious and spreads quickly. People with COVID-19 had had a wide range of symptoms reported, ranging from mild symptoms to severe illness. Symptoms vary from person to person, and can include fever or chills; cough; fatigue; body aches; headaches; congestion; loss of smell; and others. Symptoms may change with new COVID-19 variants and can vary depending on a person’s vaccination status. Some people including those with minor or no symptoms will develop Post-COVID Conditions – also called “Long COVID.”

Knowledge about COVID-19 continues to evolve. Visit the websites of the Massachusetts Department of Public Health and the U.S. Centers for Disease Control (CDC) for the most up-to-date information.

How to Protect Yourself From COVID-19

Learn more about the three main ways to stay protected: getting vaccinated, getting tested, and wearing a mask.

What to Do if You Test Positive for COVID-19

Got COVID-19? Learn more about testing, isolation, and exposure guidelines as well as treatment for COVID-19.


Updated: June 28, 2023