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Influenza, commonly known as the flu, is an infectious disease caused by influenza viruses. Symptoms range from mild to severe and often include fever, runny nose, sore throat, muscle pain, headache, coughing, and fatigue. These symptoms begin one to four (typically two) days after exposure to the virus and last for about two to eight days.
Common Flu Symptoms. As with any illness, several symptoms are common among most people who get the flu. This includes: Fever. Cough. Body aches. Sore throat. Loss of appetite. Nasal congestion ...
The infectious period can start before, during or after the onset of symptoms, and it may stop before or after the symptoms stop showing. It is also known in the literature by a variety of synonymous terms such as the infective period , the period of infectiousness , communicability period , the period of communicability , contagious period ...
While it’s possible that you could spread the flu to others before you develop symptoms, the period of maximal ... may be contagious, and usually the period of maximal infectiousness is in the ...
3.3 Infectious period. 4 Diagnosis. ... commonly known as the flu, is an infectious disease caused by an ... These symptoms typically begin two days after exposure ...
Basically, this is really, really contagious. 24-hour flu symptoms. The exact symptoms of your 24-hour flu will depend on what, exactly, caused the illness. But if you happen to have norovirus ...
The period from the time of infection to the time of becoming infectious is called the pre-infectious period or the latent period. During the pre-infectious or latent period, a host may or may not show symptoms (i.e. the incubation period may or may not be over), but in both cases, the host is not capable of infecting other hosts i.e ...
Flu symptoms may appear within one to four days of infection, while COVID-19 symptoms may appear up to 14 days after infection. COVID-19 can be contagious for longer than the flu and may include ...