Undiagnosed HIV in women attending a sexual health clinic for non-barrier methods of contraception. Two case studies.

Approximately one-third of human immunodeficiency virus (HIV) cases in the UK remain undiagnosed. More than half of new diagnoses in the last 2 years have been acquired through heterosexual sexual intercourse. Two cases of women with identified risk factors for HIV infection, who presented for contraception and were later found to be HIV-positive, are described. It is suggested that providers of contraception are well placed to identify clients at high risk of HIV and to recommend HIV testing.