Do you have COVID-19 questions? Our scientists have answers.

How long does it take after getting a vaccine to be protected against the virus? After I get vaccinated can I stop wearing a mask and return to normal?

Most of the COVID-19 vaccines, including those that will be available first, require two doses taken three or four weeks apart. It is estimated that an individual will be protected fourteen days, or two weeks, after receiving the second dose of vaccine. However, it is not yet clear if being vaccinated means you cannot still spread the virus to other people. Therefore, until the majority of people are vaccinated, it is likely we will need to continue wearing masks and taking other precautions.

Drafted 18 December 2020

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