MCQ IN MEDICINE

Detailed explanation-1: -Infectious diseases are caused by microscopic germs (such as bacteria or viruses) that get into the body and cause problems. Some-but not all-infectious diseases spread directly from one person to another. Infectious diseases that spread from person to person are said to be contagious.

Detailed explanation-2: -Infectious diseases are illnesses caused by germs (such as bacteria, viruses, and fungi) that enter the body, multiply, and can cause an infection. Some infectious diseases are contagious (or communicable), meaning they are capable of spreading from one person to another.

Detailed explanation-3: -But there are many types of infections you won’t get from another person. You might pick up germs by touching surfaces, or by eating or drinking things that have bacteria or viruses in them. Some diseases spread only through infected insects or other animals.