INFECTION & CONTROL

This may refer to humans who can get the disease.

any disease-producing agent, especially a virus, bacterium, or other microorganism.

It must be present for a disease to occur.

These are living organisms that can transmit infectious pathogens between humans, or from animals to humans.

This refers to the habitat in which the agent normally lives, grows, and multiplies.

Refers to a person with inapparent infection who is capable of transmitting the pathogen to others.

Refers to inanimate object like food, water, etc. that can carry an agent from one organism to another

Refers to the invasion and multiplication of microorganisms such as bacteria, viruses, and parasites that are not normally present within the body.

Refers to any harmful deviation from the normal structural or functional state of an organism, generally associated with certain signs and symptoms.