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Introduction/Aim Carbon monoxide (CO) is a gas produced by incomplete combustion of carbon compounds and is a leading cause of poising throughout the world. The objective of this paper is to analyze 5 cases of acute carbon monoxide poisoning in petroleum industry workers, occupying a shared accommodation and to present diagnostic, therapeutic and preventive measures. Case report the workers had to be treated by the emergency medical service during the night for health problems arising from carbon monoxide inhalation from a faulty installation. Venous blood samples were collected to measure the concentration of carboxyhemoglobin (COHb) and gas analyses were done upon admission and 120 minutes later. They were treated with parenteral therapy and oxygen by mask, and they made a complete recovery. Conclusion Faulty installation of a gas-powered heating system caused acute carbon monoxide poisoning in 5 people occupying the space. After 120 minutes in a closed environment, the carbon monoxide concentration was high enough to cause a significant increase of COHb in the venous blood. Prompt diagnosis and adequate therapy are crucial to ensure a favorable treatment outcome. Preventive measures, such as educating workers and introducing health and safety measures into the work environment are extremely important in preventing accidents such as these.

Introduction. Anthropozoonoses are diseases that affect humans and animals and they can be transmitted naturally from animals to humans. The aim of this study was to identify characteristics and types of occupational hazards that lead to occupational anthropozoonoses, determine their incidence in economic activities of the Autonomous Province of Vojvodina. Material and Methods. Using a descriptive, epidemiological study we analysed the occupational anthropozoonoses occurring in the Vojvodina which were registered at the Institute of Occupational Health Novi Sad, Serbia, from 1992 to 2016. Results. In the observed period, a total of 481 occupational diseases were identified, out of which 62 (12.9%) cases were the occupational infectious diseases. A total of 19 cases of occupational anthropozoonoses were registered. The average annual incidence of occupational anthropozoonoses was 0.96 per 100,000 employees. The linear trend of annual incidence was neg?ative. The average age was 44.05?8.34 years. Male patients accounted for 73.7% of cases. The average length of service among patients was 19.63?8.2 years. Conclusion. In addition to the implementation of available specific immunization measures and personal protection measures that prevent contact with pathogens, it is important to continuously educate workers concerning the work?place risks and perform preventive medical examinations in order to enable early recognition and treatment of the disease. In addition, continuous education of medical practitioners of different specialities would help to better identify occupational anthropozoonoses.