Search for COVID-19 Information Here

When is someone infectious?

Last Updated: 04/10/2023

Generally, those infected with SARS-CoV-2 are most likely to be highly infectious a few days before COVID-19 symptoms start and the following five days.

If you've been exposed to COVID-19 or test positive, it's important to take precautions so you don't infect your loved ones. Learn more about how to keep yourself and others safe if you've been exposed or if you test positive.