Occupational exposure to blood and other body fluids among healthcare workers in Cameroon: A systematic review and meta-analysis

Occupational exposure to blood and body fluids (BBFs) has become a serious public health problem for healthcare workers (HCWs), especially in developing countries. This exposure increases the risk of contracting blood-borne infections, such as human immunodeficiency virus, hepatitis B, and hepatitis C. The present systematic review and meta-analysis were conducted to estimate the pooled prevalence of BBF exposure among HCWs in Cameroon. Relevant research reports were systematically searched and collected using online databases such as PubMed, Google Scholar, Cochrane Library, and Science Direct, as well as unpublished studies from the national library. Out of 539 records, only 15 studies were included in the final analysis. The I2 tests were employed to assess the heterogeneity of the included studies. Random-effects meta-analysis model was employed to estimate the lifetime and 12-month prevalence of BBF exposure among HCWs in Cameroon. The model indicated that the estimated overall pooled prevalence of 12-month and lifetime BBF exposure among HCWs in Cameroon was 55.44% (95% confidence interval [CI]: 41.20 – 69.68, I2 = 97.5%, p<0.001) and 57.27% (95% CI: 42.43 – 72.10, I2 = 97.7%, p<0.001), respectively. The highest 12-month pooled prevalence was observed in intermediate-level health facilities (84.73%, 95% CI: 85.55 – 88.50), whereas the highest lifetime prevalence was observed in the North-West and South-West regions (77.96%, 95% CI: 57.39 – 93.19). HCWs in Cameroon face a significant risk of BBF exposure, with a high prevalence of exposure over their lifetime and within a 12-month period. This study highlights the urgent need to enhance and implement effective occupational safety and health policies to protect HCWs in Cameroon.
Alamneh, Y.M., Abriham, Z.W., Ayenew, N., Daniel, B.K., & Tadesse, Y.A. (2020). The prevalence of occupational injury and its associated factors in Ethiopia: A systematic review and meta-analysis. Journal of Occupational Medicine and Toxicology, 15(1):14. https://doi.org/10.1186/s12995-020-00265-0
Aminde, L.N., Noah, F.T., Anastase, D., Neville, M.B., George, A., Divine, T., et al. (2015). Occupational post-exposure prophylaxis (PEP) against human immunodeficiency virus (HIV) infection in a health district in Cameroon: Assessment of the knowledge and practices of nurses. PLoS One, 10(4):e0124416. https://doi.org/10.1371/journal.pone.0124416
Auerbach, J.D., Siobhan, M., & Andrew, D.F. (2024). Occupational post‐exposure prophylaxis among healthcare workers: A scoping review of factors affecting optimal utilization. Journal of the International AIDS Society, 27(8):e26341. https://doi.org/10.1002/jia2.26341
Bazie, G.W. (2020). Factors associated with needle stick and sharp injuries among healthcare workers in North East Ethiopia. Risk Management and Healthcare Policy, 13(1):2449-2456. https://doi.org/10.2147/RMHP.S284049
Bigna, J.J., Marie, A.A., Serra, L.A., Angeladine, M.K., Steve, R.N.N., Elodie, T.N.M., et al. (2017). Seroprevalence of hepatitis B virus infection in Cameroon: A systematic review and meta-analysis. BMJ Open, 7(6):e015298. https://doi.org/10.1136/bmjopen-2016-015298
Bouya, S., Abbas, B., Hosien, R., Mehrbanoo, A., Majid, D., Mahdieh, P.M., et al. (2020). Global prevalence and device related causes of needle stick injuries among health care workers: A systematic review and meta-analysis. Annals of Global Health, 86(1):35. https://doi.org/10.5334/aogh.2698
Cheuyem, F.Z.L., Brian, N.A., Adidja, A., Lionel, B.K.B., Christelle, S.N., Florence, K.N., et al. (2024). Sustainable development goals and health sector strategic indicators assessment in Cameroon: A retrospective analysis at regional and national levels. medRxiv. https://doi.org/10.1101/2024.11.25.24317921
Cheuyem, F.Z.L., Emilia, E.L., Hortense, G.K., Mbopi-Keou, F.X., & Innocent, T. (2023). Needlestick and sharp injuries and hepatitis B vaccination among healthcare workers: A cross sectional study in six district hospitals in yaounde (Cameroon). Journal of Community Medicine and Public Health, 7(3):1-9. https://doi.org/10.29011/2577-2228.100321
Cheuyem, F.Z.L., Jonathan, H.N., Emilia, E.L., François- Xavier, M.K., & Innocent, T. (2023). Circumstances of occurrence and factors associated with occupational exposure to body fluids in district hospitals (Yaounde, Cameroon). International Journal of Preventive Medicine and Care, 1(2):64-72.
Cowan, E., Christine, A.K., Aracelis, F., Lisa-Gaye, R., Ruby, F., Rona, M.V., et al. (2024). PEP to Prevent HIV Infection. New York State Department of Health AIDS Institute Clinical Guidelines. Baltimore, MD: Johns Hopkins University. Available from: https://www.ncbi.nlm.nih.gov/ books/NBK562734 [Last accessed on 2025 Mar 23].
Dilie, A., Desalegn, A., & Tenaw, G. (2017). Occupational exposure to needle stick and sharp injuries and associated factors among health care workers in Awi Zone, Amhara Regional State, Northwest Ethiopia, 2016. Journal of Environmental and Public Health, 2017:e2438713. https://doi.org/10.1155/2017/2438713
Domkam, I.K., Nelson, S., Nelly, K., Patrice, S.T., Luc- Christian, G., Thomas, M.A.B., et al. (2018). Prevalence and risk factors to HIV-infection amongst health care workers within public and private health facilities in Cameroon. The Pan African Medical Journal, 29:158. https://doi.org/10.11604/pamj.2018.29.158.14073
Esum, M.E., Yvette, N.N., Claude, N.N., Loveline, N.L., & Akoachere, J.F.A. (2022). Prevalence of occupational exposure to HIV and factors associated with compliance with post-exposure prophylaxis among health workers of the Biyem-Assi, Buea, and Limbe Health Districts of Cameroon maternal and child health and AIDS. International Journal of Maternal and Child Health and AIDS, 11(1):e557. https://doi.org/10.21106/ijma.557
Fotzo, N.N.C., Innocent, T., & Abena, N. (2022). Needle Stick Injuries: Prevalence and Reporting Patterns Among Bucco Dental and Medical Health Workers in Two Reference Hospitals in Yaoundé. Thesis, Yaoundé: Université de Yaoundé 1.
Ghanei, G., Reza, M.A., Fidan, S., Sahar, D., & Naser, P. (2018). Prevalence of needlestick and sharps injuries in the healthcare workers of Iranian hospitals: An updated meta-analysis. Environmental Health and Preventive Medicine, 23(1):44. https://doi.org/10.1186/s12199-018-0734-z
Goel, V., Dinesh, K., Raghavendra, L., & Sarman, S. (2017). Occurrence of needlestick and injuries among health-care workers of a tertiary care teaching hospital in North India. Journal of Laboratory Physicians, 9(1):20-25. https://doi.org/10.4103/0974-2727.187917
Gyawali, S., Devendra, S.R., Bhuvan, K.C., & Ravi Shankar, P. (2013). Study of status of safe injection practice and knowledge regarding injection safety among primary health care workers in Baglung District, Western Nepal. BMC International Health and Human Rights, 13(1):3. https://doi.org/10.1186/1472-698X-13-3
Hassanipour, S., Mojtaba, S., Reza, T., Mousa, J., Hadiseh, R., Mahdi, M., et al. (2021). Epidemiology and risk factors of needlestick injuries among healthcare workers in Iran: A systematic reviews and meta-analysis. Environmental Health and Preventive Medicine, 26(1):43. https://doi.org/10.1186/s12199-021-00965-x
Hibbert, P.D., Sasha, S., Louise, K.W., Jeffrey, B., William, B.R., & Matthew, J.W.T. (2023). Improving patient safety governance and systems through learning from successes and failures: Qualitative surveys and interviews with international experts. International Journal for Quality in Health Care, 35(4):1-11. https://doi.org/10.1093/intqhc/mzad088
Huang, S.L., Qun, L., Shan-Hong, F., Zhi-Yong, Z., Tie-Ying, H., Bai-Yi, C., et al. (2017). Sharp instrument injuries among hospital healthcare workers in Mainland China: A cross-sectional study. BMJ Open, 7(9):e017761. https://doi.org/10.1136/bmjopen-2017-017761
JBI Critical Appraisal Tools. (2017). The Joanna Briggs Institute, Adelaide. 2017. Available from: https://jbi.global/critical-appraisal-tools [Last accessed on 2024 Dec 02].
Kaweti, G., & Teferi, A. (2016). Prevalence of percutaneous injuries and associated factors among health care workers in hawassa referral and Adare District Hospitals, Hawassa, Ethiopia, January 2014. BMC Public Health, 16(1):8. https://doi.org/10.1186/s12889-015-2642-0
Kuhar, D.T., David, K.H., Kimberly, A.S., Walid, H., Vasavi, T., Laura, W.C., et al. (2001). Updated U.S. public health service guidelines for the management of occupational exposures to HIV and recommendations for postexposure prophylaxis. Morbidity and Mortality Weekly Report, 50(RR11):1-42.
Lin, J., Xiaodong, G., Yangwen, C., Wei, S., Yan, S., Qingfeng, S., et al. (2019). A survey of sharps injuries and occupational infections among healthcare workers in Shanghai. Annals of Translational Medicine, 7(22):678. https://doi.org/10.21037/atm.2019.10.42
Maka, J. (2017). Accidental exposure to blood: Case reporting and management of healthcare workers in the Biyem-Assi district Hospital in 2016. Texila International Journal of Public Health, 5(4):303-309. https://doi.org/10.21522/TIJPH.2013.05.04.Art029
Managing Occupational Exposure to Hepatitis B, Hepatitis C and HIV. (2010). In WHO Guidelines on Drawing Blood: Best Practices in Phlebotomy. World Health Organization. Available from: https://www.ncbi.nlm.nih.gov/books/ NBK138653 [Last accessed on 2025 Mar 23].
Mandana, B.N., & Losimba, J.L. (2013). Knowledge, attitudes and practices of healthcare professionals regarding standard precautions in a hospital setting. French Society of Public Health, 25(5):663-673.
Mbaisi, E.M., Zipporah, N., Peter, W., & Jared, O. (2013). Prevalence and factors associated with percutaneous injuries and splash exposures among health-care workers in a provincial hospital, Kenya, 2010. The Pan African Medical Journal, 14(10):1-8. https://doi.org/10.11604/pamj.2013.14.10.1373
Mbanya, D., Jerome, A., Claude, T.T., Sylvie, M., Marcel, M.L., & Lazare, K. (2010). Risk factors for transmission of HIV in a hospital environment of Yaoundé, Cameroon. International Journal of Environmental Research and Public Health, 7(5):2085-2100. https://doi.org/10.3390/ijerph7052085
Mengistu, D.A., & Sina, T.T. (2020). Prevalence of occupational exposure to needle‐stick injury and associated factors among healthcare workers of developing countries: Systematic review. Journal of Occupational Health, 62(1):e12179. https://doi.org/10.1002/1348-9585.12179
Moher, D., Alessandro, L., Jennifer, T., Douglas, G.A., & The PRISMA Group. (2009). Preferred reporting items for systematic reviews and meta-analyses: The PRISMA Statement. PLoS Medicine, 6(7):e1000097. https://doi.org/10.1371/journal.pmed.1000097
Ngekeng, S., Alain, C.M., Peter, N., Dickson, N., Alphonse, N., Kevine, T., et al. (2018). “Hepatitis B prevalence, knowledge and occupational factors among health care workers in Fako Division, South West Region Cameroon. Microbiology Research Journal International, 23(4):1-9. https://doi.org/10.9734/MRJI/2018/40445
Ngwa, C.H., Elvis, A.N., & Samuel, N.C. (2018). Assessment of the knowledge, attitude and practice of health care workers in fako division on post exposure prophylaxis to blood borne viruses: A hospital based cross-sectional study. The Pan African Medical Journal, 31(1):108. https://doi.org/10.11604/pamj.2018.31.108.15658
Noubiap, J.J.N., Jobert, R.N.N., Karen, K.K., Shalom, T.N., & Lucy, A.A. (2013). Occupational exposure to blood, hepatitis B vaccine knowledge and uptake among medical students in Cameroon. BMC Medical Education, 13(1):148. https://doi.org/10.1186/1472-6920-13-148
Nouetchognou, J.S., Jérôme, A., Bonaventure, J., & Dora, M. (2016). Accidental exposures to blood and body fluids among health care workers in a referral hospital of Cameroon. BMC Research Notes, 9(1):94. https://doi.org/10.1186/s13104-016-1923-8
Sahiledengle, B., Azeb, G., Tadesse, G., & Desta, H. (2018). Infection prevention practices and associated factors among healthcare workers in governmental healthcare facilities in Addis Ababa. Ethiopian Journal of Health Sciences, 28(2):177-186. https://doi.org/10.4314/ejhs.v28i2.9
Sahiledengle, B., Yohannes, T., Demelash, W., & Bruce, J.E.Q. (2020). Occupational exposures to blood and body fluids among healthcare workers in Ethiopia: A systematic review and meta-analysis. Environmental Health and Preventive Medicine, 25(1):58. https://doi.org/10.1186/s12199-020-00897-y
Shi, Y., Haifeng, X., Yuanshuo, M., Licheng, W., Tian, G., Lei, S., et al. (2020). Prevalence of occupational exposure and its influence on job satisfaction among chinese healthcare workers: A large-sample, cross-sectional study. BMJ Open, 10(4):e031953. https://doi.org/10.1136/bmjopen-2019-031953
Shitu, S., Getachew, A., & Haimanot, A. (2021). Occupational exposure to blood/body fluid splash and its predictors among midwives working in public health institutions at Addis Ababa City Ethiopia, 2020. Institution-based cross-sectional study. PLoS One, 16(6):e0251815. https://doi.org/10.1371/journal.pone.0251815
Takougang, I., Fabrice, Z.L.C., Billy, R.S.Z., Forlemu, F.T., & Hortense, M.M. (2024). Awareness of standard precautions, circumstances of occurrence and management of occupational exposures to body fluids among healthcare workers in a regional level referral hospital (Bertoua, Cameroon). BMC Health Services Research, 24(1):424. https://doi.org/10.1186/s12913-024-10855-x
Takougang, I., Fabrice, Z.L.C., Blessing, A.C., Ngati, D.N., & Hortense, M.M. (2024). Accidental exposure to body fluids among healthcare workers in a referral hospital in the security-challenged region of South West Cameroon. Journal of Nursing and Healthcare, 9(2):1-13.
Takougang, I., Fabrice, Z.L.C., Emilia, E.L., Jonathan, H.N., & François-Xavier, M.K. (2023). Observance of standard precautions for infection prevention in the Covid-19 era: A cross sectional study in six district hospitals in Yaounde, Cameroon. American Journal of Biomedical Science and Research, 19(5):590-598. https://doi.org/10.34297/AJBSR.2023.19.002628.
Takougang, I., Fabrice, Z.L.C., Jonathan, H.N., Emilia, E.L., & Francois-Xavier, M.K. (2023). Infection risk perception, reporting and post-exposure management of occupational injuries among healthcare workers in district Hospitals. Journal of Clinical Gastroenterology and Hepatology, 7(4):1-7. https://doi.org/10.36648/2575-7733.7.4.33
Takougang, I., Zita, F.M., Fabrice, Z.L.C., Ariane, N., & Michèle, L. (2023). Occupational exposure and observance of standard precautions among bucco-dental health workers in referral hospitals (Yaoundé, Cameroon). American Journal of Biomedical Science and Research, 20(5):623-630. https://doi.org/10.34297/AJBSR.2023.20.002762
Westermann, C., Claudia, P., Birgitte, L., Monica, L., & Albert, N. (2015). The prevalence of hepatitis C among healthcare workers: A systematic review and meta-analysis. Occupational and Environmental Medicine, 72(12):880-888. https://doi.org/10.1136/oemed-2015-102879
Zhang, X., Yue, G., Mengjing, C., Lorann, S., & Huiyun, X. (2015). Needlestick and sharps injuries among nurses at a teaching hospital in China. Workplace Health and Safety, 63(5):219-25. https://doi.org/10.1177/2165079915580035