Infection

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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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News tagged with infection

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Blocking biofilms: Alzheimer's research sheds light on potential treatments for urinary tract infections

Chemistry / Biochemistry

created Nov 25, 2009 | popularity 5 / 5 (1) | comments 0

(PhysOrg.com) -- Research into Alzheimer's disease seems an unlikely approach to yield a better way to fight urinary tract infections (UTIs), but that's what scientists at Washington University School of Medicine in St. Louis ...


UN: HIV outbreak peaked in 1996

Medicine & Health / HIV & AIDS

created Nov 24, 2009 | popularity not rated yet | comments 1

(AP) -- The number of people worldwide infected with the virus that causes AIDS - about 33 million - has remained virtually unchanged for the last two years, United Nations experts said Tuesday.


Reduced skin infections in Northern Australian Aboriginal children

Medicine & Health / Diseases

created Nov 24, 2009 | popularity not rated yet | comments 0

A community-based program aimed at reducing the burden of skin disease across remote communities in Australia's Northern Territory has been successful according to a study published November 24 in the open-access journal ...


Killer fungus threatening amphibians

Killer fungus threatening amphibians

Biology / Plants & Animals

created Nov 23, 2009 | popularity 5 / 5 (1) | comments 0

Amphibians like frogs and toads have existed for 360 million years and survived when the dinosaurs didn't, but a new aquatic fungus is threatening to make many of them extinct, according to an article in the ...


UNAIDS: Sex main cause for HIV spreading in China (AP)

UNAIDS: Sex main cause for HIV spreading in China

Medicine & Health / HIV & AIDS

created Nov 25, 2009 | popularity not rated yet | comments 0

(AP) -- The virus that causes AIDS is now spreading fastest in China through heterosexual sex, a trend demanding new strategies to stave off a rebound in the epidemic after years of progress in containing ...


New study finds MRSA on the rise in hospital outpatients

Medicine & Health / Diseases

created Nov 24, 2009 | popularity not rated yet | comments 0

The community-associated strain of the deadly superbug MRSA -- an infection-causing bacteria resistant to most common antibiotics -- poses a far greater health threat than previously known and is making its way into hospitals, ...


Etiologic factors of gastric cardiac adenocarcinoma among men in Taiwan

Medicine & Health / Health

created Nov 25, 2009 | popularity not rated yet | comments 0

The gastric cardiac adenocarcinoma (GCA) is a very rare disease. In recent decades, however, the incidence of the GCA has increased dramatically in many Western countries. An increasing trend in GCA is also observed in municipal ...


Alarming trend -- antiviral therapy to treat hepatitis C is declining in the US

Medicine & Health / Diseases

created Nov 24, 2009 | popularity not rated yet | comments 0

Researchers from the University of Michigan determined that only 663,000 of the approximately 3.9 million Americans with hepatitis C virus (HCV) infection received antiviral therapy between 2002 and 2007. Treatment rates ...


Why circumcision reduces HIV risk

Medicine & Health / HIV & AIDS

created Nov 24, 2009 | popularity 4 / 5 (1) | comments 2

The decreased risk of HIV infection in circumcised men cannot be explained by a reduction in sores from conditions such as herpes, according to research published in PLoS Medicine.