EVERYDAY SCIENCE

Detailed explanation-1: -Communicable (also known as infectious or transmissible) diseases are caused by microorganisms such as bacteria, viruses, parasites and fungi that can be spread, directly or indirectly, from one person to another.

Detailed explanation-2: -A communicable disease is one that is spread from one person to another through a variety of ways that include: contact with blood and bodily fluids; breathing in an airborne virus; or by being bitten by an insect.

Detailed explanation-3: -Contact Diseases are transmitted when an infected person has direct bodily contact with an uninfected person and the microbe is passed from one to the other. Contact diseases can also be spread by indirect contact with an infected person’s environment or personal items.

Detailed explanation-4: -Direct: involves direct body surface to body surface contact and physical transfer of microorganism between an infected or colonized person to another person by touch. Indirect: involves contact between a person and a contaminated object. This is often a result of unclean hands contaminating an object or environment.

Detailed explanation-5: -Indirect transmission refers to the transfer of an infectious agent from a reservoir to a host by suspended air particles, inanimate objects (vehicles), or animate intermediaries (vectors).