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

Didn't find any relevant articles in the suggestions?

Please fill out the contact form below and we will reply as soon as possible.

* *

Can people infected with COVID-19 spread the disease before appearing to be ill?

Yes. Everyone should wear face coverings because around 40 percent of those infected with SARS-CoV-2 may not show symptoms, so it's not clear who is or is not infected and capable of spreading COVID-19 at any one time.

People should also keep distance (six feet or more) from one another, avoid crowded indoor spaces, ventilate homes and buildings, and practice good hygiene, such as washing your hands.

Drafted 14 September 2020

Was this article helpful?