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Background: During their academic activities, nursing students are required to carry out clinical internships during which they can be exposed to contamination by bloodborne pathogens. Objective. The study was carried out to determine the prevalence and associated factors of occupational exposure to biological material potentially infected by blood in a population of nursing students. Materials and Methods: A cross-sectional design was used in this study and a self-administered questionnaire was provided to students. The research work was conducted from February 20, 2022, to March 15, 2022. Results: The questionnaire was completed by 119 students. A total of 94 (78.99%) of the participants were female with a mean age of 20.46±1.16 years. 48 (40.34%) exposures were recorded with corresponding incidence rates of 0.4 exposures/person/year. With at least one accidental exposure to blood in 21 (43.75%) students. The OR analysis made by year of study showed that the ratio between the exposure risk was lower than 1 with P>0.05. The comparison between the different nursing specialties showed a significant difference between the students of General Nurses and Family and Community Health Nurses. The variables associated with exposures to blood were: female sex and personal protective equipment. Conclusions: During their clinical training, nursing students face several types of risks including biological through blood. In order to prevent the occurrence of these incidents, the consequences of which can be fatal, it is necessary to invest in training sessions and our institute should set up a local management unit for following the exposed students.
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AIM: Isoniazid (INH) is the most effective drug used as a first-line tuberculosis (TB) treatment besides rifampicin, pyrazinamide, and ethambutol. It is also the most commonly associated with hepatotoxicity. Differences of toxicity induced by INH have been attributed to genetic variability of the N-acetyltransferase 2 (NAT2) gene which encodes a drug-metabolizing enzyme. The aim of this study was to characterize the acetylation profile of patients who developed hepatotoxicity after TB treatment by genotyping NAT2 polymorphisms. PATIENTS AND METHODS: This study included 42 Moroccan patients who developed hepatotoxicity after TB treatment and 163 Moroccan controls without TB. We genotyped four selected variants of the NAT2 gene (NAT2*5, NAT2*6, NAT2*7, and NAT2*14) by Sanger sequencing for patients and real-time polymerase chain reaction for controls. RESULTS: The majority of patients had NAT2 genotypes previously described as slow acetylators including NAT2*5/*5, NAT2*5/*6, NAT2*6/*6, and NAT2*6/*14 (78%) and none were genotyped as rapid acetylators. Controls were slow, intermediate, and rapid acetylators with frequencies of 72.39%, 21.48%, and 6.13%, respectively. CONCLUSION: There were no fast acetylator genotypes found among the patients having INH-hepatotoxicity. This finding suggests that the slow acetylator phenotype may contribute to the development of TB treatment hepatotoxicity.