http://news.bbc.co.uk/2/hi/americas/4260467.stm
Drug-resistant HIV strain found
New York health officials are looking for other cases of the strain
Health officials in New York say they have found a new strain of highly drug-resistant HIV in a city resident.
The resident, a man in his mid-40s who had unprotected sex with men for years, is thought to have developed Aids much faster than usual after infection.
The strain - known as 3-DCR HIV - has not been detected anywhere in the world and is "difficult or impossible to treat", according to health experts.
It has prompted renewed warnings to gay men to practise safe sex.
City health officials are working to find other possible cases of the strain.
Experts say drug resistance is increasingly common among people with HIV, but not when accompanied by such a quick progression to Aids.
'Wake-up call'
The man, who has not been named, is believed to have had sex with hundreds of men.
What's unique about this is the combination of multiple drug resistance and a rapid course - to folks in the public health community, that is a particularly dangerous combination
Ronald Valdiserri
Centers for Disease Control and Prevention
Officials said he frequently used the drug crystal methamphetamine, a stimulant taken to reduce sexual inhibitions.
He is thought have been infected quite recently, and developed Aids between two and 20 months after infection. Progression to Aids usually takes about 10 years.
The strain was found to be resistant to three out of the four commonest anti-retroviral drugs.
Ronald Valdiserri, director of the HIV/Aids programme at the US Centers for Disease Control, no similar case had been found anywhere in the world.
"What's unique about this is the combination of multiple drug resistance and a rapid course," he told the New York Times newspaper. "To folks in the public health community, that is a particularly dangerous combination."
City health commissioner Thomas Frieden described the case as a "wake-up call" for promiscuous gay men.
"This community successfully reduced its risk of HIV in the 1980s, and it must do so again to stop the devastation of HIV/Aids and the spread of drug-resistant strains," he said.
However, some Aids specialists outside New York have cast doubt on the alarm, saying that the man's immune system may already have been compromised, the newspaper said.
Drug-resistant HIV strain found
New York health officials are looking for other cases of the strain
Health officials in New York say they have found a new strain of highly drug-resistant HIV in a city resident.
The resident, a man in his mid-40s who had unprotected sex with men for years, is thought to have developed Aids much faster than usual after infection.
The strain - known as 3-DCR HIV - has not been detected anywhere in the world and is "difficult or impossible to treat", according to health experts.
It has prompted renewed warnings to gay men to practise safe sex.
City health officials are working to find other possible cases of the strain.
Experts say drug resistance is increasingly common among people with HIV, but not when accompanied by such a quick progression to Aids.
'Wake-up call'
The man, who has not been named, is believed to have had sex with hundreds of men.
What's unique about this is the combination of multiple drug resistance and a rapid course - to folks in the public health community, that is a particularly dangerous combination
Ronald Valdiserri
Centers for Disease Control and Prevention
Officials said he frequently used the drug crystal methamphetamine, a stimulant taken to reduce sexual inhibitions.
He is thought have been infected quite recently, and developed Aids between two and 20 months after infection. Progression to Aids usually takes about 10 years.
The strain was found to be resistant to three out of the four commonest anti-retroviral drugs.
Ronald Valdiserri, director of the HIV/Aids programme at the US Centers for Disease Control, no similar case had been found anywhere in the world.
"What's unique about this is the combination of multiple drug resistance and a rapid course," he told the New York Times newspaper. "To folks in the public health community, that is a particularly dangerous combination."
City health commissioner Thomas Frieden described the case as a "wake-up call" for promiscuous gay men.
"This community successfully reduced its risk of HIV in the 1980s, and it must do so again to stop the devastation of HIV/Aids and the spread of drug-resistant strains," he said.
However, some Aids specialists outside New York have cast doubt on the alarm, saying that the man's immune system may already have been compromised, the newspaper said.
