You may also get infections that a person with a healthy immune system likely wouldn't get (called opportunistic infections).
Advocates of raw milk hold that pasteurization kills enzymes that make food digestible and bacteria that contribute to a healthy immune system.
The HIV-infected partners started off with a moderately healthy immune system.
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With humans, if we get too little sleep, have a poor diet, and take on too much pressure, our stress levels rise and we succumb to ailments our otherwise healthy immune system could easily handle.
In adults, C. difficile infection is associated with diarrhea and unpleasant side effects, and while babies don't seem to be as affected by the bacteria, the presence of C. difficile could push out the Escherichia and Shigella that are so critical to developing a strong and healthy immune system.
B-cells play a critical role in keeping the immune system healthy.
If they're taking protease inhibitors and they're on their drugs and their immune system is fairly healthy, they're not going to be terribly susceptible to MRSA. We see MRSA infections when the immune system is pretty depleted, either in people with HIV or some other diseases.
Even if you are healthy, changes to your immune system during pregnancy make you more likely to get seriously ill, Dolan says.
Lupus is an autoimmune disease characterized by inflammation of the joints, skin, major organs and central nervous system as the immune system attacks healthy tissues and cells.
This medicine is an impressive collection of firsts: not only is it the first drug approved to treat lupus, a potentially fatal disease in which the immune system attacks healthy tissues, it is also one of the first drugs to come out of genomics, the systematic evaluation of human genetics that was epitomized by the human genome project a decade ago.
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But the condition also resembles an autoimmune disease, in which the immune system mistakenly attacks healthy tissue.
For other infections, particularly viruses, the primary treatment options are: vaccination to prevent infection, antiviral agents that only work against specific viruses (sometimes only specific strains of viruses) and just doing the best you can do to keep a patient healthy and hydrated while their own immune system does the heavy lifting.
The family left the hospital briefly in mid-January and then returned to Johns Hopkins for the bone marrow transplant that would replace Zoe's diseased immune system with Maxine's healthy one.
Recent discoveries revealed that tumors are adept at cloaking themselves by hijacking the body's own mechanism for preventing the system's T-cells, the infection- and disease-fighting cells of the immune system, from running amok against healthy tissue.
"Everything we already know about fighting off chronic disease, like getting sufficient sleep, staying active throughout life, and having a healthy diet" may stave off premature aging of the immune system, too, Epel said.
One on microbes relies on virtual reality to let kids energize the body's immune system by whacking computer-generated images of viruses attacking healthy tissue.
By mimicking the conditions created by melanomas, they showed that in the presence of tumour cells, the immune system sent out IgG4 antibodies, but when faced with healthy cells it functioned as expected with IgG1 circulating.
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