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..
The period between becoming infected and the start of plague symptoms is called the plague incubation period. The bubonic plague incubation period is typically two to six days. The primary pneumonic plague incubation period is usually one to three days.The Plague.lague Incubation Period: A Summary. When a person becomes infected with the bacteria that cause plague (Yersinia pestis), the bacteria begin to multiply within the body. With bubonic plague, this occurs in the lymph system; with pneumonic plague, this occurs within the lungs.