Blood born viral infections, sexually transmitted diseases and latent tuberculosis in italian prisons: a preliminary report of a large multicenter study

Abstract

Background: Recent screenings of inmates for Hepatitis C virus (HCV), Hepatitis B virus (HBV), human immunodeficiency virus (HIV), Syphilis and Latent Tuberculosis (LTB) did not provide sufficient information to improve healthcare strategies.

Aim: To obtain valuable information on the endemicity of the above mentioned Infections in prisons of Italy.

Materials and methods: A screening based on a peer-to-peer communication, followed by a month of blood sampling on a voluntary basis was performed to detect antibody to 4 of the 5 above mentioned infections and detect LTB by PPD (purified protein derivative) Skin Test. The present analysis regards data obtained in 9 of the 20 prisons.

Results: The percentage of patients who accepted the screening varied between jails (37.3-95.2%, median 62.2), but it was higher than 10.0-20.5% obtained in the same 9 prisons using traditional methods before our intervention. The participation to the screening reached 65.3% for HBV, 64.6% for HCV, 67.4%for HIV, 55.7% for TPHA (Treponema Pallidum Hemagglutination Assay) and 42.8% for LTB. HBsAg was detected in 4.4% of 2265 subjects, anti-HCV in 22.8% of 2241, anti-HIV in 3.8% of 2339 and TPHA in 2.1% of 1932; PPD Skin Test was positive in 17.2% of 1486 subjects. The screening identified 183 subjects with an unknown infection, 56 italian and 127 foreigners to be evaluated for clinical decisions: 35 with HBV chronic infection, 34 with HCV chronic infection, 3 anti-HIV positive, 14 with syphilis and 97 with LTB.

Conclusions: The new approach to the screening, based on a peer-to-peer communication followed by blood sampling on a voluntary basis provided valuable information to improve the healthcare system in each single prison.