The number of gay and bisexual men in the U.S who tested positive for the virus that causes AIDS jumped 7.1 percent in 2002, while the number of new HIV diagnoses remained stable for other vulnerable groups.
Despite concerns voiced by health care workers' unions and a scientific panel, officials from the Centers for Disease Control and Prevention said that mass vaccination of a half-million medical workers could start as soon as next week.
Jim Lehrer talks with Dr. Jeffrey Koplan, director of the Centers for Disease Control and Prevention.
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