Measuring how long drugs remain in your system is based on the drug's half-life, or the amount of time it takes a drug to leave your body. The half-life is best described as the amount of time it takes the liver and kidneys to filter and break down the drug within your bloodstream.
A person is not usually contagious during the norovirus incubation period. People infected with norovirus are usually contagious from the moment they begin feeling ill to at least 3 days after recovery. Some people may be contagious for as long as 2 weeks after recovery.fter approximately 1 to 2 days, norovirus symptoms can appear. This period between the norovirus transmission and the start of norovirus symptoms is known as the norovirus incubation period..
Adenovirus typically has a 1-week incubation period2. However, the incubation period can vary from person to person even when dealing with the same virus. In a recent bout of the stomach flu (viral gastroenteritis) in a friendâs household, the 5 year old got sick exactly 2 days after the 1 year old.denovirus typically has a 1-week incubation period2. However, the incubation period can vary from person to person even when dealing with the same virus. In a recent bout of the stomach flu (viral gastroenteritis) in a friendâs household, the 5 year old got sick exactly 2 days after the 1 year old.