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Patient with drug-resistant form of HIV identified

Researchers have identified a patient with a unique variant of HIV that is resistant to multiple classes of antiretroviral drugs and associated with the rapid development of AIDS, reporting their findings in this week's issue of THE LANCET.

The patient is a New York man who had unprotected sex with multiple partners and regularly took the illegal stimulant metamfetamine. His infection with HIV resulted in progression to symptomatic AIDS in 4-20 months. Martin Markowitz (Aaron Diamond AIDS Research Centre, New York, USA) and colleagues analysed the genetic make-up of the patient's virus and assessed its susceptibility to antiretroviral drugs.

Rapid progression to AIDS after infection with HIV-1 has been previously described, as has the transmission of multidrug resistant viruses. However, the unique feature of this report is the combination of these two features multidrug resistance and rapid clinical course to AIDS.

Previous research suggests that the likelihood to progression to AIDS in 6 and 12 months is seven per 10,00 and 45 per 10,000 individuals respectively. The cause of the rapid disease progression may be due to a particularly aggressive form of HIV. However, studies looking into this are ongoing and currently incomplete. The authors note that the public health ramifications of this case are great since the patient reported having unprotected sex with multiple partners.

Dr Markowitz states: "Only additional investigations will reveal whether this case is isolated or not. Irrespective of the outcome, efforts to prevent HIV-1 transmission need to be intensified, with particular emphasis on the epidemic that is being propelled by the use of metamfetamine. However, in doing so, care should be taken to avoid punitive measures against the populations most vulnerable to HIV-1."

In an accompanying editorial The Lancet comments: "This case serves as a reminder that HIV remains a frighteningly versatile foe, one that can muta
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Contact: Joe Santangelo
j.santangelo@elsevier.com
1-212-633-3810
Lancet
17-Mar-2005


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