Every year, numerous people are affected by the flu. While this often led to death at the beginning of the 20th century, modern medicine can treat the viral infection well. Nevertheless, the flu waves spread rapidly every year and have not yet been completely contained. Sometimes this is because the virus is constantly changing.
Rapid spread of viruses through droplets
The flu spreads via a so-called droplet infection. Careless behavior is enough for the droplets to reach the mucous membranes and lead to an infection there. Talking and sneezing are enough to carry viruses about one meter in the air. Shaking hands or coughing can also pass the virus on, and they stick to objects such as door handles and telephones for several hours. Thorough hand washing and distance from other people will help you to reduce the risk of infection.
Risk of flu, especially when it’s cold
Viruses are more likely to cause the disease to break out, especially if you have a weak immune system. Stress or too little sleep promote the process. Cold air in winter constricts the blood vessels in the mucous membranes. This will reduce blood flow, which increases the risk of infection. Therefore, a particularly large number of people fall ill in winter.