MCQ IN MEDICINE

Detailed explanation-1: -Flu is a contagious respiratory illness caused by influenza viruses that infect the nose, throat, and sometimes the lungs. It can cause mild to severe illness, and at times can lead to death. The best way to prevent flu is by getting a flu vaccine each year.

Detailed explanation-2: -Causes. Flu is caused by a virus that is spread from person to person. It causes seasonal epidemics each year.

Detailed explanation-3: -From Latin influentia, “to flow into”; in medieval times, intangible fluid given off by stars was believed to affect humans. The Italian influenza referred to any disease outbreak thought to be influenced by stars.

Detailed explanation-4: -Influenza (flu) and the common cold are both contagious respiratory illnesses, but they are caused by different viruses. Flu is caused by influenza viruses only, whereas the common cold can be caused by a number of different viruses, including rhinoviruses, parainfluenza, and seasonal coronaviruses.