The influenza or flu virus usually enters the human body through the nose or the mouth. This is because the flu virus can be present in droplets that are released when an infected person coughs, sneezes, or talks. These droplets can then be inhaled through the nose or mouth of another person, allowing the virus to enter the body and cause an infection. It is important to note that touching surfaces contaminated with the flu virus and then touching the nose or mouth can also lead to infection. So, it is crucial to practice good hygiene, such as washing hands frequently, covering mouth and nose when coughing or sneezing, and avoiding close contact with individuals who are sick, to reduce the risk of getting infected with the flu virus.
