Flu Information Sheet - Web influenza (flu) • a common contagious viral infection that attacks the respiratory system • symptoms include fever of 100.4 f or. It is common in all parts. Centers for disease control and prevention, national center for. Web flu can cause fever and chills, sore throat, muscle aches, fatigue, cough, headache, and runny or stuffy nose. Web seasonal influenza (the flu) is an acute respiratory infection caused by influenza viruses.
It is common in all parts. Web flu can cause fever and chills, sore throat, muscle aches, fatigue, cough, headache, and runny or stuffy nose. Web seasonal influenza (the flu) is an acute respiratory infection caused by influenza viruses. Centers for disease control and prevention, national center for. Web influenza (flu) • a common contagious viral infection that attacks the respiratory system • symptoms include fever of 100.4 f or.