flu
influenza (say: in-floo-en-zah) is also called the flu. it's an infection that causes fever, chills, cough, body aches, headaches, and sometimes earaches or sinus problems. the flu is caused by the influenza virus (say: vy-rus). a virus is a microorganism (say: my-croh-or-gah-nih-zum), which means it's so small that you can't see it without a strong microscope.
for most people, the flu is a drag, but it goes away in a week or two. but for some people, the flu can make them very sick. those groups include:
· babies and toddlers under age 2
· people older than 65
· adults and kids who have health problems, such as diabetes and asthma
anyone who's at risk of getting really sick needs to get a flu shot, or vaccine. people such as doctors and nurses also need the shot because they take care of sick people.
healthy kids and adults don't need it as much, but they sometimes get a flu shot, just to be on the safe side. flu vaccines are usually given in the fall, before flu season starts. flu season means the months of the year when a lot of people have the flu and it's easy to catch it. it starts in november and usually ends in april.
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