AP/ August 23, 2012, 4:08 AM

Mysterious AIDS-like disease discovered

AP

(AP) Researchers have identified a mysterious new disease that has left scores of people in Asia and some in the United States with AIDS-like symptoms even though they are not infected with HIV.

The patients' immune systems become damaged, leaving them unable to fend off germs as healthy people do. What triggers this isn't known, but the disease does not seem to be contagious.

This is another kind of acquired immune deficiency that is not inherited and occurs in adults, but doesn't spread the way AIDS does through a virus, said Dr. Sarah Browne, a scientist at the National Institute of Allergy and Infectious Diseases.

She helped lead the study with researchers in Thailand and Taiwan, where most of the cases have been found since 2004. Their report is in Thursday's New England Journal of Medicine.

"This is absolutely fascinating. I've seen probably at least three patients in the last 10 years or so" who might have had this, said Dr. Dennis Maki, an infectious disease specialist at the University of Wisconsin in Madison.

It's still possible that an infection of some sort could trigger the disease, even though the disease itself doesn't seem to spread person-to-person, he said.

The disease develops around age 50 on average, but does not run in families, which makes it unlikely that a single gene is responsible, Browne said.

Some patients have died of overwhelming infections, including some Asians now living in the U.S., although Browne could not estimate how many.

Kim Nguyen, 62, a seamstress from Vietnam who has lived in Tennessee since 1975, was gravely ill when she sought help for a persistent fever, infections throughout her bones and other bizarre symptoms in 2009. She had been sick off and on for several years and had visited Vietnam in 1995 and again in early 2009.

"She was wasting away from this systemic infection" that at first seemed like tuberculosis but wasn't, said Dr. Carlton Hays Jr., a family physician at the Jackson Clinic in Jackson, Tenn. "She's a small woman to begin with, but when I first saw her, her weight was 91 pounds, and she lost down to 69 pounds."

Nguyen was referred to specialists at the National Institutes of Health who had been tracking similar cases. She spent nearly a year at an NIH hospital in Bethesda, Md., and is there now for monitoring and further treatment.

"I feel great now," she said Wednesday. But when she was sick, "I felt dizzy, headaches, almost fell down," she said. "I could not eat anything."

AIDS is a specific disease, and it stands for acquired immune deficiency syndrome. That means the immune system becomes impaired during someone's lifetime, rather than from inherited gene defects like the "bubble babies" who are born unable to fight off germs.

The virus that causes AIDS — HIV — destroys T-cells, key soldiers of the immune system that fight germs. The new disease doesn't affect those cells, but causes a different kind of damage.

Browne's study of more than 200 people in Taiwan and Thailand found that most of those with the disease make substances called auto-antibodies that block interferon-gamma, a chemical signal that helps the body clear infections.

Blocking that signal leaves people like those with AIDS — vulnerable to viruses, fungal infections and parasites, but especially micro-bacteria, a group of germs similar to tuberculosis that can cause severe lung damage. Researchers are calling this new disease an "adult-onset" immunodeficiency syndrome because it develops later in life and they don't know why or how.

"Fundamentally, we do not know what's causing them to make these antibodies," Browne said.

Antibiotics aren't always effective, so doctors have tried a variety of other approaches, including a cancer drug that helps suppress production of antibodies. The disease quiets in some patients once the infections are tamed, but the faulty immune system is likely a chronic condition, researchers believe.

The fact that nearly all the patients so far have been Asian or Asian-born people living elsewhere suggests that genetic factors and something in the environment such as an infection may trigger the disease, researchers conclude.

The first cases turned up in 2004 and Browne's study enrolled about 100 people in six months.

"We know there are many others out there," including many cases mistaken as tuberculosis in some countries, she said.

© 2012 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.
24 Comments Add a Comment
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Alishia_Mason says:
Something.. is missing~sorry, maybe it is not the report!
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Alishia_Mason says:
I feel like a lot of information is being left out.. What doctors? Where specifically? What research has been done? Where are the references and side notes? Too much is being left out on this, especially to even be considered a *news report!! Seriously??!! No, I could not use this as a reference for anything!
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newdevilry says:
"micro-bacteria" --> try mycobacteria. The AP science reporter needs a microbio refresher.
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Peachesheard says:
Perhaps, these persons have had an exposure to toxic chemical poisoning in water, air, air filtering such as air conditioner, maybe blood pressure medications. something they all take regularly. Alot of the medications on the market are now forgein produced and dont have the same standards as with FDA testing .. and many come from countries like NIGERIA. When you could have a quality product from the USA. Toxic testing should be applied but since 9-11-01 iNdustrial medicine has become a secret and not used to pursue enviornmental contaminations which produce SIMILAR symptoms.. and do damage the immune system as well.
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newdevilry replies:
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yes the NIGERIAN pharmaceutical industry is probably putting AIDS in the blood pressure meds they make. AIDS would also explain this AIDS-like illness.
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Chocolate_Rivers says:
Two words - BILL GATES

Part of the plan to reduce the world's population. What better way than to block the ability of the body to fight infections? It is also a great way to get the victim to spend tons of money on drugs that may or may not help to fight infections. Win-win for the pharmaceutical companies and if the patient dies - a win for the eugenics people.
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LibertyWon2012 replies:
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I agree with your comment. The Aids/HIV virus has never been seen under a microscope and the disease is just thought to exist because of the wasting syndrome of those infected. Bill Gates and others have said specifically that they are looking for depopulation. Eugenicists didn't disappear after the nazis they actually moved the nazi scientists to america (Operation Paperclip) we are being tested on daily with Medications, GMOs, and all the chemicals in our environment. Please educate yourself people.
understands_science replies:
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Well, most ways to kill someone are better than destroying their immune system. People without a working immune system require a lot of medical resources and can take many many years to die. As to LibertyWon2012's comment about HIV never being seen under a microscope, no virus has ever been seen under a microscope, as they are too small. Water atoms have also never been seen under a microscope, but we know they exist based on their effects. We have sequenced the DNA of HIV, so we know it exists. And we know that everyone with AIDS has HIV, and that reducing the amount of HIV in ones body removes AIDS. We know from epidemiological studies that AIDS spreads among people who share needles and those who have unprotected intercourse when at least 1 of them is already infected with HIV.

Thus we can safely conclude that HIV causes AIDS...
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cozzicon says:
The CDC will be announcing later today that this disease only effects conservative republicans. It's God's judgment for 1981-1986.
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vanchunx says:
Yeh get those Vaccines. It's amazing what they can do with biotechnology nowadays. In addition you get a dose of mercury,
aluminum, squalene, formaldehyde and DNA from another animal species!
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Grammarcia says:
Science aside, how about some better writing?

"Some patients have died of overwhelming infections, including some Asians now living in the U.S."

Do editors not exist anymore? It seems like we're just a race to slap content online regardless of what it says.
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esdanny replies:
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Finally, somebody that actually has a good response. You other people think this is a good oriental joke, I thought outside of the guy I'm responding to there would be meaningful questions that might help some Dr. brainstorming this disorder. Instead I saw a bunch of morons with stupid jokes. Guys life and death and everything in between is not a joke.
esdanny replies:
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Finally, somebody that actually has a good response. You other people think this is a good oriental joke, I thought outside of the guy I'm responding to there would be meaningful questions that might help some Dr. brainstorming this disorder. Instead I saw a bunch of morons with stupid jokes. Guys life and death and everything in between is not a joke.
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lloydbest1 says:
"The fact that nearly all the patients so far have been Asian or Asian-born people living elsewhere suggests that genetic factors and something in the environment such as an infection may trigger the disease, researchers conclude."

Maybe. Or maybe there is some external environmental trigger - such as chemical pollution or poisoned food - that lends some more susceptible to this. We haven't found a direct infectious agent but that doesn't mean there isn't one.

Wonder if there isn't a factor that all of the paitents have in common? With a sample size of 200 (according to the article, there could be many more) it wouldn't be that hard to tease something out.
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cab_351 says:
it should say,,,aids like disease invented by u.s.army! they had to reinvent something better,,ill bet it will kill faster than regular aids!
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