Influenza also known as flu, is the clinical condition that results from infection with influenza viruses.
Chills fever, headache, and severe muscular pains. The patient feels miserable and week. There is an inflammation in the nose and throat, which may spread down the windpipe to the lungs, resulting in a sore throat, cough and running of the nose and eyes.
- It usually occurs during seasonal change.
- Viral infections.
- It generally affects those with a toxic and run-down condition.