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- DictionaryIn·fec·tion/inˈfekSHən/
noun
- 1. the process of infecting or the state of being infected: "strict hygiene will limit the risk of infection"
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What does infection mean in medical terms?
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Learn the meaning of infection as a noun, with synonyms, examples, etymology, and related words. Find out how infection can refer to a disease, a contamination, or a communication of emotions or qualities.
Infection. 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 known as a transmissible disease or communicable disease, is an illness resulting from an infection.
- Viral Infections
- Bacterial Infections
- Fungal Infections
- Prion Disease
- Other Infections
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Viral infections occur due to infection with a virus. Millions of different viruses may exist, but researchers have only identified about 5,000 typesto date. Viruses contain a small piece of genetic code, and a coat of protein and lipid (fat) molecules protects them. Viruses invade a host and attach themselves to a cell. As they enter the cell, the...
Bacteria are single-celled microorganisms, also known as prokaryotes. Experts estimate that there are at least 1 nonillionbacteria on Earth. A nonillion is a 1 followed by 30 zeros. Much of the Earth’s biomass comprises bacteria. Bacteria take three main shapes: 1. Spherical:These are known as cocci. 2. Rod-shaped:These have the name bacilli. 3. Sp...
A fungus is often a multicellular parasitethat can decompose and absorb organic matter using an enzyme. However, some types, such as yeasts, are single celled. Fungi almost always reproduce by spreading single celled spores. The structure of a fungus is usually long and cylindrical, with small filaments branching from the main body. There are appro...
A prion is a protein that contains no genetic material and is usually harmless. Scientists do not class prions as living microorganisms. However, if a prion folds into an abnormal shape, it can become a rogue agent and cause infection. Prions can affect the structure of the brain or other parts of the nervous system. They do not replicate or feed o...
While the forms of infection that we have listed above are the main types, there are othersTrusted Sourcethat can have an effect on the body. A single celled organism with a nucleus can cause a protozoan infection. Protozoa commonly show features similar to those of animals, such as mobility, and they can survive outside the human body. They most c...
An infection is when a microorganism enters the body and causes harm. Learn about the different types of infections, such as viral, bacterial, fungal, and prion, and how to prevent and treat them.
Learn the meaning of infection as a condition in which bacteria or viruses cause disease, or as an act of passing harmful programs into a computer. See examples of infection in sentences and collocations.
Infection is the invasion and multiplication of microorganisms in body tissues, causing disease. Learn about the links, modes, and portals of infection, and how to prevent and treat it.
Learn the meaning of infection as a condition caused by bacteria or viruses, or as a harmful program for computers. See examples of infection in sentences and collocations with related words.
Infection definition: an act or fact of infecting; state of being infected. . See examples of INFECTION used in a sentence.
