A cyst is a sac-like pocket of tissue that contains fluid, air, or other substances. Cysts can grow almost anywhere in your body or on your skin. There are many different types of cysts. Most cysts are benign, or non-cancerous.
You can be contagious from a few days up to two weeks or more, depending on which virus is causing your stomach flu (gastroenteritis).A number of viruses can cause gastroenteritis, including noroviruses and rotaviruses.The contagious period â the time during which a sick person can give the illness to others â is slightly different for each virus. 1  Norovirus.2  With norovirus â the most common cause of viral gastroenteritis in adults and children â you're contagious from the moment you begin to feel ill. number of viruses can cause gastroenteritis, including noroviruses and rotaviruses. The contagious period â the time during which a sick person can give the illness to others â is slightly different for each virus.
The incubation period of the stomach flu is the time from when you swallowed the viruses to when you start to feel sick. There are a variety of viruses that cause the stomach â¦ flu (viral gastroenteritis).The incubation period for most of these viruses is 24-48 hours.However, the incubation period can occasionally be a full week.hether or not a person is contagious during the stomach flu incubation period will depend on which stomach flu virus the person is infected with. For example, with a rotavirus infection, the person is contagious during the stomach flu incubation period.