The flu is an infection of the nose, throat and lungs caused by a variety of strains of influenza viruses. While the flu typically causes mild symptoms, it can be severe enough to cause hospitalisation or even death. Flu most commonly occurs in the winter and early spring.
While the best way to prevent the seasonal flu is to get vaccinated, Cincinnati Children's doctors and the American Academy of Paediatrics give the following tips on how to stop the spread of flu germs:
Source: Cincinnati Children's Hospital Medical Centre