Although flu is a year round disease it affects more people in winter. As human are prone to allergens in extreme weather and sudden drop in immunity during cold weather causing the virus to stick to and infect nasal cells, causing bacterial or viral infection.
According to WHO, seasonal influenza is an acute respiratory infection caused by influenza viruses.
Seasonal influenza is characterized by a sudden onset of fever, cough, headache, muscle and joint pain, feeling unwell, sore throat and a runny nose.
Most people recover from fever and other symptoms within a week without requiring medical attention. However, flu can cause severe illness, particularly among high risk groups including the very young, the elderly, pregnant women and those with serious medical conditions. Patients who are at high risk of developing severe illness should seek medical attention and should be treated with antiviral drug as soon as possible.
The best way to protect themselves is masking up, washing hands frequently with soap and water, not touching eyes or nose directly, and staying away from people who are already sick.
Health experts have time and again recommended building your immunity by eating a healthy diet, which is loaded with vitamins, minerals, antioxidants, and proteins to boost a strong internal system that helps fighting against the infection.
Exercise is another way to keep oneself healthy and disciplined, that helps the body heal faster from infection.
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