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Human immunodeficiency virus infections in teenagers. Seroprevalence among applicants for US military service. The Walter Reed Retrovirus Research Group.

Between October 15, 1985, and March 31, 1989, serum specimens from 1 141 164 teenaged youths (aged less than 20 years) who applied for entry into the US military were tested for antibodies to the human immunodeficiency virus. Overall, 393 teenaged applicants were found to be seropositive (prevalence, 0.34 per 1000). Prevalences varied markedly in different geographic locales: less than 0.1 per 1000 throughout the north-central states, compared with greater than 2 per 1000 in urban counties in Maryland, Texas, New York, and the District of Columbia. Overall, rates among teenaged males (345/991 445; prevalence, 0.35 per 1000) and teenaged females (48/150 013; prevalence, 0.32 per 1000) were comparable. The prevalence among black teenaged applicants (1.06 per 1000) was greater than that among white (0.18 per 1000) or Hispanic (0.31 per 1000) teenaged applicants. Infections with the human immunodeficiency virus are not rare among teenaged Americans.