Peripheral venous catheter colonization after skin disinfection with 0.5% aqueous sodium hypochlorite, preceded or not by one application of 70% ethanol (DACLEAN): a single-centre, randomized, open-label, pilot study.

Few data are available on the efficacy of 0.5% aqueous sodium hypochlorite (SH) for skin disinfection before peripheral catheter insertion. A total of 239 patients were randomly assigned to either one application of SH alone or one application of SH preceded by one application of 70% ethanol (ET-SH). Catheter colonization, defined as a catheter tip culture growing >1000 cfu of a micro-organism per millilitre, occurred in 29 patients (33% of 89 colonizations per 1000 catheter-days) in the SH group and in 31 patients (33% of 126 colonizations per 1000 catheter-days) in the ET-SH group.

[Study of skin reactivity to tuberculin and sensitins of atypical mycobacteria (with special reference to M. africanum in Somalia)]. / Studio della cutireattività alla tubercolina ed alle sensitine da micobatteri atipici (con particoloare riguardo al "M. africanum") in Somalia.

Skin testing with antigens from M. tuberculosis (PPD-S) and various atypical mycobacteria was carried out in Somalia among 170 patients with active tuberculosis. Percentage of positive reactons (5 mm or greater) was 70,58% with PPD-S, 60,0% with the antigen from M. africanum and M. scrofulaceum, 56,47% with the antigen from M. xenopei, 10,58% with the antigen from N. otididis and 4,50% with the antigen from N. farcinica. The percentage of subjects in whom the reaction with the antigen from M. africanum was greater than with PPD-S was 10,58%; more precisely in a percentage of 16,0% the skin testing from M. africanum was positive against a negative reaction to PPD-S, meanwhile in a percentage of 8,33% both skin tests were positive, with a greater reaction for a M. africanum test. As far as other antigens are concerned at least one of these tests was greater on the 28,23% the PPD-S one.