Article: AIDS VIRUS ABLE TO HIDE DURING SCREENING TESTS.(Main)

Byline: Gina Kolata New York Times

Scientists have discovered what they believe are unusual cases in which the AIDS virus remained hidden in one type of body cell, undetectable by commonly used screening methods.

The finding may explain the mysterious cases reported previously in which some patients who developed AIDS had no detectable antibodies, substances the body usually forms in response to the viral invasion. It may also explain cases in which virus carriers did not form antibodies for a year or more.

But the finding is troubling because it also suggests that the virus is being carried by some people at high risk of AIDS infection who ...

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