Related topics: hiv · antibiotics · bacteria · immune system · virus

Antibiotic resistance surges in dolphins, mirroring humans

Antibiotic resistance is one of the biggest public health challenges in the world today since many common bacterial infections are developing resistance to the drugs once used to treat them, and new antibiotics aren't being ...

Philippines confirms African swine fever, culls 7,000 pigs

Lab tests have confirmed that African swine fever caused the deaths of pig herds in at least seven villages near Manila and a multiagency body will be set up to ensure the highly contagious disease does not spread further, ...

Detailed map shows how viruses infect humans

Biologists at Columbia University Vagelos College of Physicians and Surgeons have leveraged a computational method to map protein-protein interactions between all known human-infecting viruses and the cells they infect. The ...

Plant protection: Researchers develop new modular vaccination kit

It could become significantly easier to vaccinate plants against viruses in the future. Scientists at Martin Luther University Halle-Wittenberg (MLU), the Leibniz Institute of Plant Biochemistry (IPB) and the National Research ...

New rapid DNA test to diagnose chlamydia infection in koalas

A new DNA test to detect chlamydia infection in koalas which can be run in the field and gives on-the-spot results within 30 minutes has been developed in a research collaboration between researchers from Queensland University ...

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Infection

An infection is the detrimental colonization of a host organism by a foreign species. In an infection, the infecting organism seeks to utilize the host's resources to multiply, usually at the expense of the host. The infecting organism, or pathogen, interferes with the normal functioning of the host and can lead to chronic wounds, gangrene, loss of an infected limb, and even death. The host's response to infection is inflammation. Colloquially, a pathogen is usually considered a microscopic organism though the definition is broader, including parasites, fungi, viruses, prions, and viroids. A symbiosis between parasite and host, whereby the relationship is beneficial for the former but detrimental to the latter, is characterised as parasitism. The branch of medicine that focuses on infections and pathogens is infectious disease. "When infection attacks the body, anti-infective drugs can help turn the tide of battle. Four types of anti-infective drugs exist: antibacterial, antiviral, antitubercular, and antifungal. A secondary infection is an infection that occurs during or following treatment of another already existing primary infection.

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