You may be able to pass on the virus, even if you don't feel sick yet. Medically reviewed by Kashif J. Piracha, MD. The flu incubation period is the time from when you come into contact with the ...

The common cold is a viral infection that affects your upper respiratory tract. It’s a contagious disease, meaning that it can be spread from person to person. The incubation period for the ...

The COVID incubation period can range from two to 14 days. ... Respiratory virus guidance update frequently asked questions. Frediani JK, Parsons R, McLendon KB, et al.

A new COVID variant called "Nimbus" is spreading. Here's what you need to know about the incubation period, symptoms ...

Influenza, or the flu, is a contagious respiratory virus. It can be a severe illness that affects the nose, throat and sometimes lungs. Symptoms of influenza are sore throat, cough, congestion ...

How long are you contagious after getting COVID, flu, RSV, pneumonia, the norovirus stomach bug and more? Here's what to know to keep others safe this holiday season.

A contagious new COVID-19 variant called NB.1.8.1, aka "Nimbus," is now dominant in the United States, CDC data show. What to ...

Here’s what causes colds to spread so easily, how long they are usually contagious and how they’re most commonly treated.

How long are you contagious after getting COVID, flu, RSV, pneumonia, the norovirus stomach bug and more? Here's what to know to keep others safe this holiday season.