Author Topic: U.S. Scientists Discover New Deadly Bacteria  (Read 1817 times)

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U.S. Scientists Discover New Deadly Bacteria
« on: June 08, 2007, 05:47:25 PM »
(AFP) - In a dramatic case of microbial sleuthing, US scientists said they have discovered a new, potentially deadly strain of bacteria previously unknown to medicine.

The bacteria was found in a 43-year-old American woman who had traveled across Peru for three weeks and suffered from symptoms similar to typhoid fever or malaria. The woman has since recovered.

Named Bartonella rochalimae, the new species is a close relative of a microbe that sickened thousands of soldiers during the First World War with what became known as trench fever, spread through body lice.

It is also related to a bacteria identified 10 years ago during the AIDS epidemic in San Francisco as the cause of cat scratch disease, which infects 25,000 people a year in the United States.

It was this previous work on cat scratch disease related to AIDS that helped experts at the University of California San Francisco (UCSF) and the US Centers for Disease Control and Prevention isolate the new bacteria found in the female traveler.

The findings are published in the New England Journal of Medicine.

Two weeks after returning to the United States from her trip to Peru, the woman experienced potentially life-threatening anemia, a rash, an enlarged spleen, insomnia and a high fever that lasted for several weeks.

Her traveling companion did not fall ill.

The Peruvian Andes is home to a related bacteria, spread by sand flies, and at first this was what experts thought was causing her illness.

Further investigation indicated the culprit was a new species altogether.

The new discovery is the sixth species identified that can infect humans, said Dr. Jane Koehler, professor of infectious diseases at UCSF and senior author of the paper.

In 1987, Koehler encountered her first patient infected with Bartonella at the AIDS Clinic at San Francisco General Hospital.

"The bacteria were eating away a bone in the arm of an AIDS patient - for months," Koehler said. "They can cause extremely painful lesions and tumors of blood vessels on the skin of immunocompromised patients."

In 1997, her team discovered that the Bartonella henselae bacterium causes cat scratch disease. Symptoms include swollen lymph nodes and fever after a person is scratched by a cat.

The new bacterium is treated with a different antibiotic that those used for cat scratch disease.

"When a patient has a high and persistent fever, we need to come up with the correct diagnosis and treatment as soon as possible - particularly for those with a weakened immune system, who can die from the infection," Koehler said. (breitbart.com)



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Re: U.S. Scientists Discover New Deadly Bacteria
« Reply #1 on: June 08, 2007, 05:49:22 PM »
"There's no perfect life, but we can let God fill it with perfect moments"

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Re: U.S. Scientists Discover New Deadly Bacteria
« Reply #2 on: June 08, 2007, 05:49:54 PM »
New diseases are coming out everyday. Things may still get worse before they get better.

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This smacks of a grand conspiracy to hide the non-existent, to identify the nameless, to paint a picture of the unseen. -- Benelynne

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pioneer

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Re: U.S. Scientists Discover New Deadly Bacteria
« Reply #3 on: June 08, 2007, 06:19:34 PM »
SARS was used by giant corporations to promote certain new products.

 

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Re: U.S. Scientists Discover New Deadly Bacteria
« Reply #4 on: April 02, 2008, 04:01:20 PM »
but SARS was really a threat, right?

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Re: U.S. Scientists Discover New Deadly Bacteria
« Reply #5 on: April 02, 2008, 04:13:58 PM »
but SARS was really a threat, right?

SARs is a threat for nations with handicapped medical systems per se China, South East Asia and the whole of the third world. First world nations such as the United States, Canada, Western Europe have ample facilities to treat such cases, and manipulate prevention. Its no longer a problem as there are medications available to combat such an infection; if untreated however, death is invertible.

As for this new disease,  Bartonella rochalimae, its rather interesting in that its gram negative, meaning it has a rather thin peptidoglycan layer and an LPS mechanism that can ostracize itself from an auto-immune response. The sicker the individual is, the more rapid the infection; so the target hosts will be those who are immuno-suppressed per se HIV patients (who therein suffer from a lack of a decreased immune system), the elderly, and children. Like typical pathogens, this new disease is vector-oriented, meaning its transmitted vis-a-vis a carrier form (mosquitoe).

Best form of protection is always prevention.

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Re: U.S. Scientists Discover New Deadly Bacteria
« Reply #6 on: April 04, 2008, 04:36:51 AM »
That story wants to make me go out and give my cats a big fat hug! What in the world is coming to us next?

First story I read was about rats now cats is there anything posted in here about Bats?

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Re: U.S. Scientists Discover New Deadly Bacteria
« Reply #7 on: April 04, 2008, 04:56:39 AM »
:( .. it's a cycle. to every cure discovered there's a new virus / bacteria pud nga kapalit..

and yes. there is now a cure for ebola on primates.. wew`

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Re: U.S. Scientists Discover New Deadly Bacteria
« Reply #8 on: April 04, 2008, 04:58:06 AM »
Well said, Kiams.

Man can never truly conquer everything. We invent and repair as a reaction to a disaster. History has proven it so.

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