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 is a Colonoscopy? Colonoscopies are considered the gold standard when it comes to colon cancer screening. Other types of screenings such as fecal occult blood tests or barium enemas can simply detect cancer. A colonoscopy is the only screening that can both detect and prevent colon cancer. During your colonoscopy, your doctor can find and remove polyps before they have a chance to turn into cancer. That lowers your risk of developing colon cancer.