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Routine HIV testing urged for all Americans

Routine HIV testing urged for all Americans

Urging a major shift in U.S. policy, some health experts are recommending that virtually all Americans be tested routinely for HIV, much as they are for cancer and other diseases. Since the early years of the AIDS epidemic in the 1980s, the government has recommended routine screening only in big cities, where AIDS rates are high, and among members of high-risk groups, such as gay men and drug addicts. But two large federally funded studies found that the cost of routinely testing and treating nearly all adults would be outweighed by the benefits: a reduction in new infections and the opportunity to start patients on drug cocktails early, when they work best. "Given the availability of effective therapy and preventive measures, it is possible to improve care and perhaps influence the course of the epidemic through widespread, effective, and cost-effective screening," Samuel A. Bozzette, MD, wrote in an editorial accompanying the studies, which appear in Thursday's edition of the New England Journal of Medicine. A failure to institute such screening at doctors' offices and clinics would be "a critical disservice" to HIV-positive people and "the future health of the nation," wrote Bozzette, who is from the University of California, San Diego, and the Rand Corporation think tank in Santa Monica, Calif. Robert Janssen, director of HIV/AIDS prevention at the Centers for Disease Control and Prevention, said the CDC will reevaluate its guidelines over the next two years and will consider the study's findings as well as the availability of new, rapid HIV antibody tests that produce results in 20 minutes instead of the usual week or two. Who would bear the cost of expanded testing--and the cost of the treatment, which runs to at least $15,000 a year--remains a sticky question amid government cutbacks in health care funding. However, Janssen said the studies' findings could lead some private insurers to encourage more HIV antibody testing. One of the studies, by researchers at Duke and Stanford universities and the Veterans Affairs Palo Alto Health Care System, estimates that routine one-time testing of everyone would cut new infections each year by just over 20% and that every HIV-positive patient identified would gain an average of 1 1/2 years of life. The other study, by Yale and Harvard researchers, found that testing people every three to five years would be cost-effective for all but the lowest-risk people, such as those who are celibate or are in monogamous heterosexual relationships. And even for those people, one-time testing was found to be cost-effective. Nationwide, about 40,000 new HIV infections occur each year. An estimated 950,000 Americans are infected with the virus, but about 280,000 of them don't know it. Current CDC guidelines recommend routine tests wherever the prevalence of HIV infection is more than 1%--basically, cities and some densely populated suburbs. "If you need proof of the fact that it's not working, look at all the people who have slipped through the cracks--280,000," said A. David Paltiel of the Yale School of Medicine's division of health policy, lead author of the second study. The VA-funded study found that in areas where about 1 in 100 patients has undiagnosed HIV--what the CDC calls high-risk settings--widespread testing would cost about $15,100 for each year of good health gained by people diagnosed with the virus, counting the benefits to their sexual partners. Even in areas with an undiagnosed HIV infection rate of only 1 in 2,000--the rate in the general population--each healthy year gained by newly diagnosed HIV patients and their partners would still cost less than $50,000. That is the threshold at which health economists generally consider treatments to be cost-effective. (AP)

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