News tagged with immune

Related topics: immune system

Early signs in young children predict type 1 diabetes

New research shows that it is possible to predict the development of type 1 diabetes. By measuring the presence of autoantibodies in the blood, it is possible to detect whether the immune system has begun to break down the ...

16 hours ago
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Increased risk from toxoplasmosis

A third of all humans carry the parasite that causes toxoplasmosis—a disease commonly associated with cats, HIV-AIDS patients and pregnant women—with scientists long believing healthy immune systems control the parasite ...

Feb 25, 2015
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Immunization rates improve with centralized reminder system

Childhood immunization rates would improve with a centralized notification system that reminded families when immunizations were due, according to a new study, published online by JAMA Pediatrics, developed by researchers at the ...

Feb 23, 2015
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Some pathogens use immune systems against us

Every moment of every day, our immune systems are battling to keep us healthy against an onslaught from invading organisms. But some of these invaders have evolved to use our very defences against us, writes ...

Feb 23, 2015
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New test to predict the effectiveness of cancer vaccines

Cancer vaccines are designed to turn the body's own immune system specifically against tumor cells. Particularly promising are vaccines that are directed against so-called neoantigens: These are proteins that have undergone ...

Feb 19, 2015
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Immunity (medical)

Immunity is a biological term that describes a state of having sufficient biological defenses to avoid infection, disease, or other unwanted biological invasion. Immunity involves both specific and non-specific components. The non-specific components act either as barriers or as eliminators of wide range of pathogens irrespective of antigenic specificity. Other components of the immune system adapt themselves to each new disease encountered and are able to generate pathogen-specific immunity.

Adaptive immunity is often sub-divided into two major types depending on how the immunity was introduced. Naturally acquired immunity occurs through contact with a disease causing agent, when the contact was not deliberate, whereas artificially acquired immunity develops only through deliberate actions such as vaccination. Both naturally and artificially acquired immunity can be further subdivided depending on whether immunity is induced in the host or passively transferred from a immune host. Passive immunity is acquired through transfer of antibodies or activated T-cells from an immune host, and is short lived, usually lasts only a few months, whereas active immunity is induced in the host itself by antigen, and lasts much longer, sometimes life-long. The diagram below summarizes these divisions of immunity.

This text uses material from Wikipedia licensed under CC BY-SA