Can An Infected Person Spread COVID-19 Before Showing Symptoms?
COVID-19Common questionCan an infected person spread COVID-19 before showing symptoms?An infected person can spread COVID-19 starting 2 days before the person has any symptoms or tests positive. People who have COVID-19 don't always have obvious symptoms. A person is still considered a close contact even if they were wearing a mask while they were around someone with COVID-19.
How long should I wait to get tested for COVID-19 after being exposed if I am fully vaccinated?
- If you have been fully vaccinated and around someone who has COVID-19 (close contact), you do not need to stay away from others (quarantine), or be restricted from work unless you develop COVID-like symptoms. We recommend that you get tested 3-5 days after your last exposure to someone with COVID-19.
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Is presymptomatic transmission of COVID-19 possible?
The possibility of presymptomatic transmission of SARS-CoV-2 increases the challenges of COVID-19 containment measures, which are predicated on early detection and isolation of symptomatic persons.
Presymptomatic Transmission of SARS-CoV-2 — Singapore, January 23 ...
What is an asymptomatic case of COVID-19?
An asymptomatic case is an individual who has a laboratory confirmed positive test and who has no symptoms during the complete course of infection.
Criteria for releasing COVID-19 patients from isolation
Who is considered a close contact of someone with COVID-19?
For COVID-19, a close contact is anyone who was within 6 feet of an infected person for a total of 15 minutes or more over a 24-hour period (for example, three individual 5-minute exposures for a total of 15 minutes). An infected person can spread COVID-19 starting from 2 days before they have any symptoms (or, if they are asymptomatic, 2 days before their specimen that tested positive was collected), until they meet the criteria for discontinuing home isolation.
Coronavirus (COVID-19) frequently asked questions