Prolonged flu-like symptoms

Influenza, or the flu, is a common and highly contagious respiratory illness. A person develops this illness as a result of contracting an influenza virus.

It is likely that most people will experience the flu at least once during their lifetime. Some people may experience only mild symptoms.

Flu symptoms for 3 weeks now

However, those with a weakened immune system may experience severe and even life threatening complications.

People at higher risk can take certain steps to protect themselves from the viruses that cause the flu.

In this article, we discuss what the flu is, how long it lasts, and how to prevent it.

Influenza is a common and highly contagious illness that mainly affects the respiratory system.

Stages of flu recovery

This system consists of the lungs, the airways, and the muscles necessary for breathing.

A person develops flu as a result of contracting an influenza virus.

There are main types of influenza virus: A, B, C, and D.

According to the , the ones that routinely spread between people are influenza A and

how long until flu symptoms show up

how long till flu symptoms show