It happens when a microorganism invaded the body, multiplies, and causes injury or disease.
Infection
It is a disease-causing microbe which could be classified as bacteria, fungi, protozoa, or virus.
Pathogen
It can spread from person to person.
Communicable infections
They are usually caused by infected personnel, patients, visitors, food, drug, or equipment while a patient is in the hospital or other healthcare facilities.
Pathogenic microbe such as virus, bacteria, fungus, protozoa, and rickettsia
Infectious (causative) agent
Source of the agent of infection or place where the microbe could grow, survive, and multiply, which could be in humans, animals, food, water, soil, or equipment
Reservoir
A way or manner wherein an infectious agent can leave the reservoir host, which could be through secretions and exudates, tissue specimens, blood, feces, or urine
Exit pathway
Airborne, direct (touching or kissing) or indirect contact (contaminated objects), droplets (coughing or sneezing), vector (insect, anthropod, or animal), and vehicle (food,water, or drugs)
Means of transmission
The way an infectious agent enters a host, which includes body orifices, mucous membranes, and breaks in the skin.
Entry Pathway
Someone who is prone to infection, especially the elderly, newborn babies, patients who are immune-suppressed or unvaccinated, and those suffering from acute or chronic illness.
Susceptible host
It is an essential part of standard precautions in the healthcare setting because it is an effective way to prevent infections that can be transmitted from the patient and healthcare personnel during the procedure.