ANTI-HIV IN BLOOD-DONORS FROM 1990 TO 199 2 - SEROPREVALENCE, RESIDUAL RISK ESTIMATED AND EPIDEMIOLOGY

In France, HIV seroprevalence in blood donations still decreased from 1990 to 1992 with an important diminution in 1992, in first time donor s as well as in regular donors. During the last 1992 semester, this pr evalence reached 0.051 parts per thousand : 0.19 parts per thousand an d 0.026 parts per thousand in donations from first time and regular do nors respectively. The residual risk was estimated to be 1 for 580 000 donations in 1992 (CI 95 % = 1/2 000 000 to 1/330 000). Sex ratio was 3.7 and 3.4 in 1990 and 1991 and increased to 5.5 in 1992 due to a ve ry small number of seropositive women, which seems to be an important epidemiological indicator. The major at-risk group is still represente d by homo-bisexual men.