[Mandatory test for HIV infections in prison population: evaluation of the efficacy of a screening program]

The effectiveness of a screening programme for HIV infection among prisoners is discussed, in relation to validity of screening test, natural history ad modalities of transmission of the infection, hypothetical objectives of the programme, in comparison with alternatives prevention programmes. The association between HIV infection, e.v. drug abuse and sexual behaviours is analyzed. On the basis of available evidences the hypothesis of lack of effectiveness and possible harmfulness of this screening programme is proposed.