HIV infection concentrated in London

London continues to bear the brunt of HIV-1 infection in England and Wales, says the report from the government's unlinked anonymous screening programme published this week. The report estimates that in London 1 in 570 women at term are infected with HIV-1–40 times the prevalence in women delivering outside the south east. Among men attending genitourinary medicine clinics, 15.8% of homosexual and bisexual men and 1% of heterosexual men in London are positive for the virus compared with 4.31% of homosexual and bisexual men and 0.11% of heterosexual men outside London (see editorial, p 206).

Since the government's screening programme began in 1990 …