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: -What Causes the Flu? The flu is caused by influenza viruses that infect the nose, throat, and lungs. These viruses spread when people with flu cough, sneeze or talk, sending droplets with the virus into the air and potentially into the mouths or noses of people who are nearby.

Detailed explanation-3: -Overview. Seasonal influenza is an acute respiratory infection caused by influenza viruses which circulate in all parts of the world. There are 4 types of influenza viruses, types A, B, C and D. Influenza A and B viruses circulate and cause seasonal epidemics of disease.

Detailed explanation-4: -The flu is a common infectious disease caused by influenza (flu) viruses. The flu usually affects a person’s breathing system.

Detailed explanation-5: -Influenza A viruses are the only influenza viruses known to cause flu pandemics (i.e., global epidemics of flu disease).