Among the many viruses we see causing respiratory illness right now, the influenza virus (commonly called "the flu") can be particularly severe. Infection with the influenza virus causes sudden onset of a fever, chills, dry cough, and muscle aches. Other symptoms include headache, fatigue, sore throat, and nasal congestion.
Some children are at increased risk of more serious illness from influenza, because of conditions such as diabetes, asthma, immunity problems, or being treated with immune-suppressing medications. They are especially vulnerable to complications, and should get vaccinated as soon as possible. The "Seasonal Flu Shot" that has been administered to many people this year protects against Influenza A and B.
To learn more about the flu and see the most up to date information, go to https://www.cdc.gov/flu/about/season/current.htm