Background. Additional studies are required to identify risk factors for hepatitis C virus (HCV) transmission to health care workers after occupational exposure to HCV.Methods. We conducted a matched case-control study in 5 European countries from 1 January 1991 through 31 December 2002. Case patients were health care workers who experienced seroconversion after percutaneous or mucocutaneous exposure to HCV. Control subjects were HCV-exposed health care workers who did not experience seroconversion and were matched with case patients for center and period of exposure.Results. Sixty case patients and 204 control subjects were included in the study. All case patients were exposed to HCV-infected fluids through percutaneous injuries. The 37 case patients for whom information was available were exposed to viremic source patients. As risk factors for HCV infection, multivariate analysis identified needle placement in a source patient's vein or artery (odds ratio [OR], 100.1; 95% confidence interval [CI], 7.3-1365.7), deep injury (OR, 155.2; 95% CI, 7.1-3417.2), and sex of the health care worker (OR for male vs. female, 3.1; 95% CI, 1.0-10.0). Source patient HCV load was not introduced in the multivariate model. In unmatched univariate analysis, the risk of HCV transmission increased 11-fold for health care workers exposed to source patients with a viral load 16 log 10 copies/mL (95% CI, 1.1-114.1), compared with exposures to source patients with a viral load р4 log 10 copies/mL.Conclusion. In this study, HCV occupational transmission was found to occur after percutaneous exposures. The risk of HCV transmission after percutaneous exposure increased with deep injuries and procedures involving hollow-bore needle placement in the source patient's vein or artery. These results highlight the need for widespread adoption of needlestick-prevention devices in health care settings, together with other preventive measures.Infection with hepatitis C virus (HCV) is an important occupational hazard for health care workers. In longitudinal studies, attempts have been made to assess
In May and June 2012, a national point prevalence survey (PPS) of healthcare-associated infections (HAIs) and antimicrobial use was conducted among French patients under home-based hospital care (HBHC). Data from 5,954 patients in 179 volunteer HBHC providers were collected. Prevalence of patients with at least one active HAI was 6.8% (95% confidence interval (CI): 6.1-7.4). Prevalence of those receiving at least one antimicrobial agent was 15.2% (95% CI: 14.3-16.1). More than a third (35.5%) of HAIs were HBHC-associated, 56% were imported from a healthcare facility and 8.5% of indeterminate origin. The main infection sites were urinary tract (26.6%), skin and soft tissue (17.6%), surgical site (15%), and pneumonia or other respiratory tract infections (13.5%). In multivariate analysis, three risk factors were associated with HBHC-associated infections: urinary catheter, at least one vascular catheter and a McCabe score 1 or 2. The most frequently isolated microorganism was Staphylococcus aureus (20.7%), 28.1% of them meticillin-resistant. Non-susceptibility to thirdgeneration cephalosporins was reported in 25.3% of Enterobacteriaceae, of which 16.1% were extended spectrum beta-lactamase-producing strains. The most prescribed antimicrobials were fluoroquinolones (16.1%), and third-generation cephalosporins (14.5%). PPS may be a good start in HBHC to obtain information on epidemiology of HAIs and antimicrobial use.
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