Objectives: Analyze MSDs among workers of the National Electricity Company of Senegal. Methodology: This was a cross-sectional, descriptive and analytical study, carried out from April 2 to May 15, 2022. The INRS TMS questionnaire version 2000 was used. The analysis was carried out with Excel 2016 and R version 4.1.1 software. During the bivariate analysis, the Chi2 test was used. The p was considered significant if it was less than 0.05. Results: The average age of the sample was 42.4 years ± 9.5. The sex ratio (M/F) was 3.16 in favor of men. The prevalence of MSDs was 91%. The average number of MSD locations per affected worker was 3.1. Low back pain (58.8%) and back pain (54.2%) were the most frequently reported MSDs. When working, the sitting position and prolonged standing position were adopted respectively by 57.7% and 39.4% of workers. Break time, work requiring work very quickly, work under deadline, risk of error in work in the event of lack of concentration and the latitude of being able to work at the desired speed had a significant link with occurrence of MSDs (p<0.05). Conclusion: MSDs constitute an occupational health problem within the National Electricity Company of Senegal. This study proves the need to strengthen, on the one hand, awareness, training of workers and on the other hand, the review of the organization and management of personnel.

Objectives: assess the level of knowledge, attitudes and practices of health personnel in the Sangalkam Health District on blood exposure accidents. Methodology: We conducted a cross-sectional, descriptive and analytical study, from April 1, 2023 to May 30, 2023. A standardised, anonymous questionnaire was drawn up and sent to healthcare staff. Results: A total of 60 carers took part in the study, 88.3% of whom were women. Midwives were more represented (31.7%). Hepatitis B vaccination coverage was 69.6%. 31.7% of respondents were aware of the viruses most feared in the event of a blood exposure accident (HIV, HBV and HCV). They claimed to know the principles of universal precaution in 91.5% of cases. The prevalence of blood exposure accidents was 61.7%, i.e. 27% reported. Washing with soapy water was carried out immediately after the BEA in 56.8% of cases. Needles were recapped by 28.3% of respondents. Where there was a risk of splashing of biological fluid, personal protective equipment (gown, mask, goggles) was worn by 23.3% of respondents. Overloading of safety containers was reported in 11.7% of cases. Respondents’ knowledge and attitudes were not significantly related to socio-professional characteristics (p>0.05). Conclusion: Compliance with standard precautions and the use of safety equipment could significantly reduce the risks associated with AES. In addition, awareness-raising and vaccination of healthcare workers against hepatitis B should be encouraged.