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Introduction: In response to low knowledge about HIV and intolerant attitudes toward persons living with HIV among Arab university students, a peer-based educational intervention was developed and impact evaluated on knowledge and attitudes of high school students in 2 of 4 main cities of United Arab Emirates., Methods: Four small teams of final year medical students, 3 female and 1 male, were trained. Multistage random sampling selected 14 female and 5 male Arab schools, then 56 female and 14 male grade 12 classes in Al Ain and Abu Dhabi. The 90-minute intervention included a factual presentation and 3 attitude workshops. Baseline and postintervention knowledge and attitudes were assessed. Significance was tested by McNemar, Wilcoxon signed rank, and multilevel regression tests., Results: Response was 99.6%, 1398 females and 505 males. Misconceptions about modes of transmission and intolerant attitudes were evident. Mean knowledge score improved from 65% to 82% and attitude 51% to 64%, that is, relative increase 26% (P < 0.0005). Females had slightly lower baseline knowledge than males but showed greater improvement in knowledge and attitudes (P < 0.0005), Conclusions: Grade 12 students' knowledge about HIV/AIDS was inadequate and attitudes stigmatizing. Peer-based knowledge workshops were effective, especially among females. Concise integrated teaching and workshops designed to address key knowledge and attitudinal deficiencies can be highly effective.

Because, globally, HIV is transmitted mainly by sexual practices and intravenous drug use and because of a long asymptomatic period, healthcare-associated HIV transmission receives little attention even though an estimated 5.4% of global HIV infections result from contaminated injections alone. It is an important personal issue for healthcare workers, especially those who work with unsafe equipment or have insufficient training. They may acquire HIV occupationally or find themselves before courts, facing severe penalties for causing HIV infections. Prevention of blood-borne nosocomial infections such as HIV differs from traditional infection control measures such as hand washing and isolation and requires a multidisciplinary approach. Since there has not been a review of healthcare-associated HIV contrasting circumstances in poor and rich regions of the world, the aim of this article is to review and compare the epidemiology of HIV in healthcare facilities in such settings, followed by a consideration of general approaches to prevention, specific countermeasures, and a synthesis of approaches used in infection control, injury prevention, and occupational safety. These actions concentrated on identifying research on specific modes of healthcare-associated HIV transmission and on methods of prevention. Searches included studies in English and Russian cited in PubMed and citations in Google Scholar in any language. MeSH keywords such as nosocomial, hospital-acquired, iatrogenic, healthcare associated, occupationally acquired infection and HIV were used together with mode of transmission, such as "HIV and hemodialysis". References of relevant articles were also reviewed. The evidence indicates that while occasional incidents of healthcare-related HIV infection in high-income countries continue to be reported, the situation in many low-income countries is alarming, with transmission ranging from frequent to endemic. Viral transmission in health facilities occurs by unexpected and unusual as well as more frequent modes. HIV can be transmitted to patients and to donors of blood products by specific vehicles and vectors during blood transfusion, plasma donation, and artificial insemination, by improperly sterilized sharps, by medical equipment during activities such as dialysis and organ transplantation, and by healthcare workers infected by occupational exposure to hazards such as blood-contaminated sharps. Personal, equipment, and environmental factors predispose to acquisition of nosocomial HIV and all are pertinent for prevention. For infection and injury control, poverty is often an underlying determinant. While sophisticated new tests offer improved HIV detection, increasingly higher marginal costs limit their feasibility in many settings. Modest investment in safer equipment and appropriate integrated training in infection control, injury prevention, and occupational safety should provide greater benefit.