Oncology & Cancer

Immune cell health discovery could optimise cancer therapies

Scientists at UCL have discovered how immune cells, essential for tackling life-threatening infections and cancers, are able to 'recycle' material within themselves in order to stay healthy and function, a breakthrough finding ...

Diseases, Conditions, Syndromes

How diarrhea pathogens switch into attack mode at body temperature

Many bacterial pathogens excrete toxins as soon as they have entered the host in order to suppress its immune response. Researchers at Ruhr-Universität Bochum (RUB) have analyzed what happens on the molecular level when ...

Genetics

Why we differ in our ability to fight off gut infections

Τhe ability of the immune system to fight off bacterial, viral and other invading agents in the gut differs between individuals. However, the biological mechanism by which this happens is not well understood, but at least ...

Pediatrics

Reduced inhaler use is safe for infants with bronchiolitis

Bronchiolitis, a lung infection that is one of the most common reasons for hospitalizations in young children, is most prevalent during the winter months and is usually treated with albuterol delivered via inhalers, despite ...

Other

Six curious facts about smell

Don't underestimate the power of your nose. It makes our everyday eating experience pleasant and interesting and it warns us of spoiled food, corked wine and the dangers of gas and smoke. It evokes strong emotional reactions, ...

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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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