How fast do I become immune to COVID-19 after getting my vaccine?
Jonathon D. Truwit, MD, enterprise chief medical officer, answers frequently asked questions around the COVID-19 vaccine. Immunity to the COVID-19 virus increases after each vaccination. Within weeks after receiving the first dose of both Pfizer and Moderna vaccines, people will have 50% immunity. The second dose brings people to 95% immunity about one week after vaccination. Learn more about the facts and science behind the COVID-19 vaccine.