
Infection: Types, causes, and differences - Medical News Today
Sep 19, 2025 · An infection occurs when a microorganism — such as bacteria, fungi, or a virus — enters a person’s body and begins multiplying.
Infection - Wikipedia
An infection is the invasion of tissues by pathogens, their multiplication, and the reaction of host tissues to the infectious agent and the toxins they produce. [1] . An infectious disease, also …
Infection | Description, Infectious Organisms, Transmission, …
2 days ago · Infection is the process by which harmful microorganisms such as bacteria, viruses, fungi, or parasites enter cells and tissues in the body and cause disease.
What Is an Infection? Causes, Types, Symptoms & Treatment ...
An infection is a condition caused by harmful microorganisms such as bacteria, viruses, fungi, or parasites invading the body. These pathogens disrupt normal bodily functions and can lead to …
INFECTION Definition & Meaning - Merriam-Webster
The meaning of INFECTION is the state produced by the establishment of one or more pathogenic agents (such as bacteria, protozoans, or viruses) in or on the body of a suitable host.
Infectious Diseases: Types, Causes & Treatments - Cleveland Clinic
Infectious diseases are illnesses caused by harmful germs (pathogens) that get into your body. The most common causes are viruses, bacteria, fungi and parasites. Infectious diseases …
What is Infection? Definition, Classification, Sources & Pathway ...
Infection is the condition when the host’s cells or tissues come in contact with the infectious parasite or pathogen. In contrast, infectious disease is a rare consequence or an illness …
What Is the Definition of Infection According to WHO?
Dec 7, 2023 · According to WHO, an infection is the invasion and multiplication of harmful microorganisms, such as bacteria, viruses, or parasites, within a host organism. Infections can …
Other Respiratory Illnesses Going Around | Respiratory Illnesses
4 days ago · This page details respiratory illnesses from bacteria and viruses other than COVID-19, flu, and RSV. It also shows the latest emergency department trends for conditions that …
Infections: Types, Causes, Symptoms, and Prevention - Healthgrades
Sep 20, 2022 · An infection occurs when a pathogen or microorganism invades the body and multiplies. Common pathogens include bacteria, viruses, and fungi. When these pathogens …