PATHOLOGY

Detailed explanation-1: -In order for infection to occur several things have to happen. This is often referred to as the Chain of Infection. The six links in the chain are: The Infectious Agent – or the microorganism which has the ability to cause disease.

Detailed explanation-2: -Certain conditions must be met in order for a microbe or infectious disease to be spread from person to person. This process, called the chain of infection, can only occur when all six links in the chain are intact.

Detailed explanation-3: -Infectious diseases are caused by pathogens, which include bacteria, fungi, protozoa, worms, viruses, and even infectious proteins called prions.