PATHOLOGY

Detailed explanation-1: -The vaccine consists of weakened, live or inactive forms of a disease-causing virus or micro-organism. After entering our body, vaccine act like a weak disease-causing pathogen, and our body initiate a response against this infection.

Detailed explanation-2: -Vaccines contain antigens that stimulate the immune system to produce an immune response that is often similar to that produced by the natural infection.

Detailed explanation-3: -Vaccines reduce risks of getting a disease by working with your body’s natural defenses to build protection. When you get a vaccine, your immune system responds. It: Recognizes the invading germ, such as the virus or bacteria.