When the flu strikes, one of the biggest concerns is how long you might be contagious. Knowing this can help protect your family, friends, and coworkers from catching the virus. This guide from ...
Those infected with the flu are most contagious during the first three days, the CDC said. In some cases, however, people can ...
With each new COVID-19 variant, the interval between exposure and symptom development appeared to shorten, according to a study published Aug. 22 in JAMA Network Open. COVID-19 is known to have a ...
A mystery virus sweeping the UK has been identified as adenovirus. Learn about its incubation period, symptoms, how it ...