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Moving cells with light holds medical promise

Scientists at Washington University School of Medicine in St. Louis have shown they can coax cells to move toward a beam of light. The feat is a first step toward manipulating cells to control insulin secretion ...

Medical research created Apr 08, 2013 | popularity 5 / 5 (3) | comments 0 | with audio podcast

Researchers find potential map to more effective HIV vaccine

By tracking the very earliest days of one person's robust immune response to HIV, researchers have charted a new route for developing a long-sought vaccine that could boost the body's ability to neutralize ...

HIV & AIDS created Apr 03, 2013 | popularity 4.5 / 5 (2) | comments 0 | with audio podcast

Study finds immunity protein that ramps up inflammation, and agents that can block it

Scientists at the University of Pittsburgh School of Medicine have discovered a new biological pathway of innate immunity that ramps up inflammation and then identified agents that can block it, leading to increased survival ...

Immunology created Mar 31, 2013 | popularity 4.8 / 5 (4) | comments 1 | with audio podcast

Some brain cells are better virus fighters

(Medical Xpress)—Viruses often spread through the brain in patchwork patterns, infecting some cells but missing others. New research at Washington University School of Medicine in St. Louis helps explain ...

Medical research created Mar 07, 2013 | popularity 4 / 5 (2) | comments 0 | with audio podcast

Researchers describe first 'functional HIV cure' in an infant

A team of researchers from Johns Hopkins Children's Center, the University of Mississippi Medical Center and the University of Massachusetts Medical School describe the first case of a so-called "functional cure" in an HIV-infected ...

HIV & AIDS created Mar 03, 2013 | popularity 5 / 5 (9) | comments 1 | with audio podcast

Wolf in sheep's clothing: Uncovering how deadly bacteria trick immune system

An outbreak of tuberculosis in the skid row area of downtown Los Angeles may have exposed up to 4,500 individuals to the bacterium that causes the deadly disease and has left federal officials scrambling ...

Medical research created Feb 28, 2013 | popularity 5 / 5 (1) | comments 0 | with audio podcast

New test better detects elephantiasis worm infection

A new diagnostic test for a worm infection that can lead to severe enlargement and deformities of the legs and genitals is far more sensitive than the currently used test, according to results of a field ...

Diseases, Conditions, Syndromes created May 20, 2013 | popularity not rated yet | comments 0 | with audio podcast

A new 'on' signal for inflammation

(Medical Xpress)—Inflammation is an important response in the body - it helps you to kill off invaders such bacteria that could cause a harmful infection. But if it's chronic or uncontrolled, inflammation can also cause ...

Inflammatory disorders created May 14, 2013 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Flu in pregnancy may quadruple child's risk for bipolar disorder

Pregnant mothers' exposure to the flu was associated with a nearly fourfold increased risk that their child would develop bipolar disorder in adulthood, in a study funded by the National Institutes of Health. The findings ...

Psychology & Psychiatry created May 14, 2013 | popularity not rated yet | comments 0 | with audio podcast

Newly described type of immune cell and T cells share similar path to maturity, according to new study

(Medical Xpress)—Labs around the world, and a core group at Penn, have been studying recently described populations of immune cells called innate lymphoid cells (ILCs). Some researchers liken them to foot soldiers that ...

Immunology created May 14, 2013 | popularity 5 / 5 (3) | comments 0 | with audio podcast

Study defines level of dengue virus needed for transmission

Researchers have identified the dose of dengue virus in human blood that is required to infect mosquitoes when they bite. Mosquitoes are essential for transmitting the virus between people so the findings have important implications ...

Diseases, Conditions, Syndromes created May 13, 2013 | popularity not rated yet | comments 0 | with audio podcast

Could adaptable bacteria cause repeat urinary tract infections?

(HealthDay)—Women suffering from recurring urinary tract infections may carry a particularly hearty strain of E. coli bacteria that flourishes in both the gut and the bladder, and can migrate back and forth ...

Diseases, Conditions, Syndromes created May 09, 2013 | popularity not rated yet | comments 0 | with audio podcast

Flu infections rising among Chinese pigs: study

Scientists said Wednesday that flu infections were rising among pigs raised for slaughter on farms in south and southeastern China, also plagued by bird flu.

Diseases, Conditions, Syndromes created May 07, 2013 | popularity 5 / 5 (2) | comments 0

Discovery holds potential in destroying drug-resistant bacteria

Through the serendipity of science, researchers at the University of Pittsburgh have discovered a potential treatment for deadly, drug-resistant bacterial infections that uses the same approach that HIV uses to infect cells. ...

Medical research created May 07, 2013 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Study finds key protein for firing up central nervous system inflammation

Scientists have identified an influential link in a chain of events that leads to autoimmune inflammation of the central nervous system in a mouse model of multiple sclerosis (MS).

Medical research created May 02, 2013 | popularity 5 / 5 (4) | comments 0 | with audio podcast

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.

For more information about Infection, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.

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