Write your body paragraphs. Each body paragraph should have 1) a topic sentence, 2) an analysis of some part of the text and 3) evidence from the text that supports your analysis and your thesis statement. A topic sentence tells the reader what the body paragraph will be about.
Many types of viruses can cause a common cold. Children younger than six are at greatest risk of colds, but healthy adults can also expect to have two or three colds annually. Most people recover from a common cold in a week or 10 days. Symptoms might last longer in people who smoke. If symptoms don't improve, see your doctor.
You can tell the difference by the length and severity of the illness and whether you've had a similar experience in the past. Both colds and flu usually last the same seven to 10 days, but flu can go three to four weeks; the flu virus may not still be there, but you have symptoms long after it's left.