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Needle Exchanges Often Overlooked In AIDS Fight

Jul 24, 2012
Originally published on July 24, 2012 4:13 pm

There's a lot of buzz at the 19th International AIDS Conference about powerful new strategies to prevent HIV infection.

But a potent old strategy isn't used enough around the world, many researchers say, and is even neglected entirely in places where it's most urgently needed.

It's called needle exchange.

Injection drug users can turn in their used (and possibly HIV-contaminated) needles and syringes and get sterile equipment. Exchange programs often offer counseling, safer-sex education, HIV testing and referrals to drug treatment programs, too.

Few strategies to prevent HIV infection are so effective, or so thoroughly proved. "It's clear this is one of the major success stories in HIV prevention," AIDS researcher Don Des Jarlais told Shots. "The only thing that comes close is our ability to prevent mother-to-child transmission of HIV with drugs."

In fact, Amsterdam's long-established needle exchange program has virtually eliminated HIV transmission there. That's pretty remarkable considering that Amsterdam has one of the world's highest rate of injection drug use — and once had one of the worst drug-associated HIV epidemics.

No more. A study at the Washington AIDS conference shows HIV incidence among injection drug users in Amsterdam has fallen to almost zero. "We conclude that drug users no longer play a role in the HIV epidemic in Amsterdam," researcher Bart Francis Xavier Grady told an audience at the AIDS conference.

Another study, presented by Trang Nguyen of Johns Hopkins, calculated the costs and benefits of expanding needle exchange programs in the United States.

She says a 10 percent expansion — at a cost of $64 million a year — would prevent 500 HIV infections among U.S. drug users. The savings, from not having to provide HIV treatment for that relatively small number of people, would be $193 million.

Des Jarlais, who is a coauthor of that report, says needle exchange programs in New York City have reduced HIV infections to about 150 a year out of 150,000 injection drug users. "That is very, very close to zero," DesJarlais says, pointing out that most of the remaining infections may be due to sexual transmission, not needle drug use.

At the peak of its drug-related HIV epidemic, New York City had about 13,000 new infections a year among injection drug users.

There are about 200 needle exchange programs in the United States, he says. Congress has barred federal support of needle exchange, largely in the belief (never proved) that providing clean needles increases illicit drug use.

This spring there was an attempt by some in Congress to prevent the District of Columbia from using nonfederal funds for needle exchanges. Washington has the worst HIV epidemic in the nation, and much of it is driven by injection drug use.

About 80 percent of U.S. needle exchanges are funded by state and local governments, with the rest from private donations and foundations. "State and local governments are under tremendous financial pressure," Des Jarlais says, "so we might see withdrawal of funding and we might see a rebound in HIV infections."

Meanwhile, there are no needle exchange programs at all in some countries where illicit drug use is driving an HIV epidemic that is out of control.

Russian researchers report that HIV among injecting drug users in Ivanovo and Novosibirsk is spreading to sex partners and on to others. For every 100 injecting drug users in Ivanovo, for example, there are 84 others downstream who don't inject drugs but have sexual contacts with drug users or with their sexual partners.

Copyright 2013 NPR. To see more, visit http://www.npr.org/.