The main claim of the passage is that washing your hands frequently is the most important step to stay well during cold season. One example of support for this claim is that colds and flu are transmitted through your hands and touching surfaces contaminated by other people increases the risk of picking up germs. Another example of support is that the most common cold virus, rhinovirus, can be picked up and passed on through touching contaminated surfaces. A sentence in the second paragraph that contains an irrelevant detail is "The most common cold virus is the rhinovirus."
rewrite this pls