Incubation Period. According to the CDC, although the incubation period can range from one to four days, the typical incubation period is two days. People can begin infecting others about one day before any symptoms of the virus appear, and are contagious for about a week after that.nfluenza is a highly contagious respiratory illness. According to the Centers for Disease Control and Prevention, every year between 5 and 20 percent of people in the United States get the flu.
Colon Cancer. There are five common colon cancer tests: colonoscopy, virtual colonoscopy, sigmoidoscopy, barium enema, and stool testing. Each has benefits and drawbacks, so it's best to ask your doctor which colon cancer test is appropriate for you. In the meantime, however, here's an overview of the most common types of colon cancer tests. During a colonoscopy, a doctor inserts a flexible tube (called a colonoscope) into your anus.
What type of stool test is used. There are several different types of stool tests. The type of stool test used depends on why the test is being done and what the doctor is looking for. Some types of stool tests are: 1  gFOBT (guaiac-based fecal occult blood test), which uses a chemical reaction on a paper card to find traces of blood in the stool that you canât see. 2  FIT (fecal immunochemical test), which uses specific antibodies for human blood to find traces of blood in the stool that you canât see.