One phrase that is often used in this context that of âpresenting a proposition as trueâ (cf. 1  Wright 1992: 34). Prima facie, it characterizes assertion well. However, there are two problems with the idea. The first is that it should generalize to other speech act types, but does not seem to do so.
The typical flu incubation period is between 24 hours and four days, with the average being two days. This means that if you are exposed to the influenza virus and become infected, you will start to experience flu symptoms anywhere between 24 hours and four days after the exposure. Another factor that contributes to how the flu spreads is when exactly you may be contagious.
Symptoms usually appear within one to two days of exposure. Although you typically feel better after a day or two, you're contagious for up to three days after you've recovered. Some people may be contagious for up to two weeks after recovery. Rotavirus. Symptoms of rotavirus â the leading cause of viral gastroenteritis in infants and young children â usually appear one to three days after exposure.