That means that you may be able to pass on the flu to someone else before you know you are sick, as well as while you are sick. Some people can be infected with a flu virus but have no symptoms. During this time, those people may still spread the virus to others.

Can flu be transmitted asymptomatically?

Because it is still possible for asymptomatic individuals to transmit flu, it is always important to take precautions and practice good hygiene. Cover your mouth with your elbow when you cough or sneeze, and wash your hands regularly with soap and warm water.

Is the flu a communicable disease?

Influenza, commonly called “the flu,” is a contagious disease caused by viruses that infect the respiratory tract, including nose, throat, and lungs.