Assessing Zoonotic Disease Exposure and Occupational Health and Safety Practices Among Veterinary Services Fieldworkers in North West Province, South Africa
Abstract
1. Introduction
2. Materials and Methods
2.1. Study Design and Setting
2.2. Study Population
2.3. Sampling and Recruitment
2.4. Data Collection
- Internal training (e.g., departmental induction, in-house OHS training, and specific biosecurity or biosafety modules);
- External training (e.g., academic coursework, workshops from previous employers);
- Ability to distinguish between zoonotic and non-zoonotic diseases;
- Frequency and adequacy of PPE usage;
- Perceived gaps in departmental OHS systems and processes.
2.5. Data Management
2.6. Statistical Analysis
2.7. Ethical Consideration
3. Results
3.1. Response Rate and Demographics
3.2. Occupational Health and Safety Knowledge by Job Category
3.3. Occupational Health and Safety Practices by Job Category
3.4. Zoonotic Exposure Risk Factors by Job Category
3.5. Perceptions of OHS Improvements Among Participants
4. Discussion
Study Limitation
5. Conclusions
6. Recommendations
- Implement a risk-based OHS programme that identifies job-specific exposure and apply the hierarchy of controls to ensure proper use of PPE and vaccination against occupational zoonoses.
- Provide continuous training in OHS, biosecurity, and biosafety tailored to each job category. This should include zoonotic disease recognition and human symptoms to facilitate early intervention and reporting.
- Encourage reporting of exposures, accidents, and symptoms among fieldworkers. Establish a cross-sectoral One Health surveillance system to monitor priority zoonoses like Brucellosis, Rabies, and Avian Influenza.
- Ensure equitable distribution of appropriate PPE and access to recommended vaccinations, especially for AHTs and VPHOs, guided by task-specific risk assessments.
- Strengthen undergraduate and postgraduate training by embedding occupational health and zoonotic disease modules to build foundational awareness among future professionals.
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
Abbreviations
AHT | Animal health technicians |
OHS | Occupational health and safety |
PPE | Personal protective equipment |
UK | United Kingdom |
USA | United States of America |
Vets | Veterinarians |
VPHOs | Veterinary public health officers |
References
- World Health Organization (WHO). Zoonoses. 2020. Available online: https://www.who.int/news-room/fact-sheets/detail/zoonoses (accessed on 5 October 2021).
- Magwedere, K.; Hemberger, M.Y.; Hoffman, L.C.; Dziva, F. Zoonoses: A potential obstacle to the growing wildlife industry of Namibia. Infect. Ecol. Epidemiol. 2012, 2, 18365. [Google Scholar] [CrossRef] [PubMed]
- Nguyen, T.T.; Mai, T.N.; Dang-Xuan, S.; Nguyen-Viet, H.; Unger, F.; Lee, H.S. Emerging zoonotic diseases in Southeast Asia in the period 2011–2022: A systematic literature review. Vet. Q. 2024, 44, 1–15. [Google Scholar] [CrossRef] [PubMed]
- Centre for Disease Control and Prevention (CDC). Zoonotic Diseases. 2019. Available online: https://www.cdc.gov/onehealth/basics/zoonotic-diseases.html (accessed on 26 July 2021).
- Newmana, H.; Shareef, A. Zoonotic viral infections in South Africa: An overview. Res. Rev. Insights 2018, 2, 1–7. [Google Scholar] [CrossRef]
- Mobo, B.H.P.; Rabinowitz, P.M.; Conti, L.A.; Taiwo, O.A. Occupational Health of Animal Workers. Hum. Anim. Med. 2010, 343–371. [Google Scholar] [CrossRef]
- World Health Organization (WHO). Occupational Health. 2024. Available online: https://www.who.int/health-topics/occupational-health (accessed on 3 June 2024).
- Gummow, B.A. Survey of zoonotic diseases contracted by South African veterinarians. J. S. Afr. Vet. Assoc. 2003, 74, 72–76. [Google Scholar] [CrossRef] [PubMed]
- World Organization for Animal Health (WOAH). Terrestrial Code Online Access. 2018. Available online: https://www.woah.org/fileadmin/Home/fr/Health_standards/tahm/1.01.04_BIOSAFETY_BIOSECURITY.pdf (accessed on 3 June 2024).
- De Cooman, C. Safe Handling and Biosecurity Measures. 2022. Available online: https://www.agproud.com/articles/56210-safe-animal-handling-and-biosecurity-measures (accessed on 5 October 2021).
- Msimang, V.; Rostal, M.K.; Cordel, C.; Machalaba, C.; Tempia, S.; Bagge, W.; Burt, F.J.; Karesh, W.B.; Paweska, J.T.; Thompson, P.N. Factors affecting the use of biosecurity measures for the protection of ruminant livestock and farm workers against infectious diseases in central South Africa. Transbound. Emerg. Dis. 2022, 69, e1899–e1912. [Google Scholar] [CrossRef] [PubMed]
- Simpson, G.; Quesada, F.; Chatterjee, P.; Kakkar, M.; Chersich, M.F.; Thys, S. Research priorities for control of zoonoses in South Africa. Trans. R. Soc. Trop. Med. Hyg. 2021, 115, 538–550. [Google Scholar] [CrossRef] [PubMed]
- Venkat, H.; Yaglom, H.D.; Adams, L. Knowledge, attitudes, and practices relevant to zoonotic disease reporting and infection prevention practices among veterinarians—Arizona, 2015. Prev. Vet. Med. 2019, 169, 104711. [Google Scholar] [CrossRef] [PubMed]
- D’Souza, E.; Barraclough, R.; Fishwick, D.; Curran, A. Management of occupational health risks in small-animal veterinary practices. Occup. Med. 2009, 59, 316–322. [Google Scholar] [CrossRef] [PubMed]
- McLean, M.; Watson, H.; Muswema, A. Veterinary waste disposal: Practice and policy in Durban, South Africa (2001–2003). J. Waste Manag. 2007, 27, 902–911. [Google Scholar] [CrossRef] [PubMed]
- World Health Organization (WHO). Control of Neglected Tropical Diseases. 2020. Available online: https://www.who.int/teams/control-of-neglected-tropical-diseases/rabies/ (accessed on 8 October 2023).
- National Department of Health; National Institute for Communicable Diseases. National Guidelines for the Prevention of Rabies in Humans, South Africa. 2021. Available online: https://www.nicd.ac.za/wp-content/uploads/2021/08/Human-Rabies-Prophylaxis-Guideline-For-South-Africa_27-August-2021.pdf (accessed on 23 July 2024).
- Department of Agriculture Land Reform and Rural Development. Animal Disease Reporting January–December 2021. 2021. Available online: https://www.nda.gov.za/index.php/publication/430-disease-reporting (accessed on 25 September 2025).
- Guerin, R.J.; Sleet, D.A. Using Behavioral Theory to Enhance Occupational Safety and Health: Applications to Health Care Workers. Am. J. Lifestyle Med. 2020, 15, 269–278. [Google Scholar] [CrossRef] [PubMed]
- Kimman, T.; Hoek, M.; de Jong, M.C. Assessing and controllinghealth risks from animal husbandry. NJAS Wagening. J. Life Sci. 2013, 66, 7–14. [Google Scholar] [CrossRef]
- Layton, D.S.; Choudhary, A.; Bean, A.G. Breaking the chain of zoonoses through biosecurity in livestock. Vaccine 2017, 35, 5967–5973. [Google Scholar] [CrossRef] [PubMed]
- Landge, S.; Tripathi, H.; Agarwal, R.K.; Banthiya, V. Knowledge level of veterinarians about occupational health hazards and the constraints felt by them for safe and hazard free working conditions. J. Vet. Public Health 2022, 9, 75–82. [Google Scholar]
- Jayanthi, R.; Boopathy, R.M. Occupational Health Hazards in Veterinarians—A Review. Pharma Innov. J. 2021, 10, 527–530. [Google Scholar]
- Centre for Disease Control and Prevention (CDC). Veterinary Safety & Health: Hazard Prevention and Infection Control. 2018. Available online: https://www.cdc.gov/niosh/topics/veterinary/hazard.html (accessed on 26 July 2021).
- Wright, J.G.; Jung, S.; Holman, R.C.; Marano, N.N.; McQuiston, J.H. Infection Control Practices and Zoonotic Disease Risks Among Veterinarians in the United States. J. Am. Vet. Med. Assoc. 2008, 232, 1863–1872. [Google Scholar] [CrossRef] [PubMed]
- Business Queensland. Veterinary Use of Personal Protective Equipment and Disinfectants. 2018. Available online: https://www.business.qld.gov.au/industries/service-industries-professionals/service-industries/veterinary-surgeons/guidelines-hendra/ppe-disinfectants (accessed on 5 July 2022).
- Robin, C.; Bettridge, J.; McMaster, F. Zoonotic disease risk perceptions in the British veterinary profession. Prev. Vet. Med. 2017, 1, 39–48. [Google Scholar] [CrossRef] [PubMed]
- Christmann, U. Best practices in veterinary personal protective equipment. Rev. Sci. Tech. 2020, 39, 561–577. [Google Scholar] [CrossRef]
Occupational Category | Responsibility |
---|---|
State Veterinarians | Are responsible for managing and controlling animal diseases, conducting ante- and post-mortem inspections, and implementing biosafety and biosecurity protocols. |
Animal Health Technicians (AHTs) | Support veterinarians by collecting diagnostic specimens, administering vaccines, and participating in disease surveillance programs. |
General/farm aid workers | Assist with animal and equipment handling and cleaning |
Veterinary Public Health Officers (VPHOs) | Oversee food safety, animal welfare, and hygiene compliance in abattoirs, and are also involved in sample collection and inspection activities. |
Variable | AHT n (%) | VPHO n (%) | Vet n (%) | Total N (%) |
---|---|---|---|---|
Sex | ||||
Female | 38 (47.5) | 11 (84.6) | 3 (25.0) | 52 (49.5) |
Male | 42 (52.5) | 2 (15.4) | 9 (75.0) | 53 (50.5) |
Age | ||||
18–33 | 13 (16.2) | 2 (15.4) | 1 (8.3) | 16 (15.2) |
34–49 | 52 (65.0) | 9 (69.2) | 9 (75.0) | 70 (66.7) |
50–65 | 15 (18.8) | 2 (15.4) | 2 (16.7) | 19 (18.1) |
Years of fieldwork experience | ||||
0–5 years | 19 (23.8) | 0 (0.0) | 1 (8.3) | 20 (19.0) |
6–10 years | 9 (11.2) | 4 (30.8) | 1 (8.3) | 14 (13.4) |
>10 years | 52 (65.0) | 9 (69.2) | 10 (83.4) | 71 (67.6) |
Variable | AHT n (%) | VPHO n (%) | Vet n (%) | Total N (%) |
---|---|---|---|---|
Departmental veterinary OHS training | ||||
Yes | 17 (21.2) | 2 (15.4) | 3 (25.0) | 22 (21.0) |
No | 63 (78.8) | 11 (84.6) | 9 (75.0) | 83 (79.0) |
Departmental biosecurity & biosafety training | ||||
Yes | 15 (18.8) | 2 (15.4) | 7 (58.3) | 24 (22.9) |
No | 65 (81.2) | 11 (84.6) | 5 (41.7) | 81 (77.1) |
Other OHS/biosecurity/biosafety training | ||||
Yes | 9 (11.2) | 0 (0.0) | 5 (41.7) | 14 (13.3) |
No | 71 (88.8) | 13 (100.0) | 7 (58.3) | 91 (86.7) |
Accurate knowledge of what zoonosis is | ||||
Yes | 75 (93.8) | 13 (100.0) | 11 (91.7) | 99 (94.3) |
No | 5 (6.2) | 0 (0) | 1 (8.3) | 6 (5.7) |
Accurate knowledge of Brucella abortus | ||||
Yes | 67 (83.8) | 10 (76.9) | 8 (66.7) | 85 (81.0) |
No | 13 (16.3) | 3 (23.1) | 4 (33.3) | 20 (19.0) |
Accurate knowledge of rabies | ||||
Yes | 73 (91.2) | 12 (92.3) | 8 (66.7) | 93 (88.6) |
No | 7 (8.8) | 1 (7.7) | 4 (33.3) | 12 (11.4) |
Accurate knowledge of the risk of a syringe with live Brucellosis vaccine | ||||
Yes | 51 (63.7) | 9 (69.2) | 11 (91.7) | 71 (67.6) |
No | 29 (36.3) | 4 (30.8) | 1 (8.3) | 34 (32.4) |
Accurate knowledge of Listeria Monocytogenes in meat | ||||
Yes | 40 (50.0) | 12 (92.3) | 9 (75.0) | 61 (58.1) |
No | 40 (50.0) | 1 (7.7) | 3 (25.0) | 44 (41.9) |
Knowledge of OHS/biosecurity/biosafety policies | ||||
Yes | 14 (17.5) | 2 (15.4) | 4 (33.3) | 20 (19.0) |
No | 66 (82.5) | 11 (84.6) | 8 (66.7) | 85 (81.0) |
Knowledge of precautionary measures | ||||
Yes | 69 (86.2) | 9 (69.2) | 12 (100.0) | 90 (85.7) |
No | 11 (13.8) | 4 (30.8) | 0 (0.0) | 15 (14.3) |
Knowledge of the importance of using PPE | ||||
Agree | 79 (98.8) | 12 (92.3) | 11 (91.7) | 102 (91.1) |
Disagree | 1 (1.2) | 1 (7.7) | 1 (8.3) | 3 (2.9) |
Variable | AHT n (%) | VPHO n (%) | Vet n (%) | Total N (%) |
---|---|---|---|---|
Overalls available | ||||
Yes | 71 (88.8) | 12 (92.3) | 12 (100.0) | 95 (90.5) |
No | 9 (11.2) | 1 (7.7) | 0 (0.0) | 10 (9.5) |
Overalls use | ||||
Always | 72 (90.0) | 12 (92.3) | 7 (58.3) | 91 (86.7) |
Sometimes | 6 (7.5) | 1 (7.7) | 5 (41.7) | 12 (11.3) |
Never | 2(2.5) | 0 (0.0) | 0 (0.0) | 2 (2.0) |
Safety shoes/boots available | ||||
Yes | 66 (82.5) | 12 (92.3) | 10 (83.3) | 88 (83.8) |
No | 14 (17.5) | 1 (7.7) | 2 (16.7) | 17 (16.2) |
Safety shoes/boots use | ||||
Always | 59 (73.7) | 11 (84.6) | 10 (83.3) | 80 (76.2) |
Sometimes | 13 (16.3) | 1 (7.7) | 2 (16.7) | 16 (15.2) |
Never | 8 (10.0) | 1 (7.7) | 0 (0.0) | 9 (8.6) |
Gloves available | ||||
Yes | 61 (76.3) | 4 (30.8) | 11 (91.7) | 76 (72.4) |
No | 19 (23.7) | 9 (69.2) | 1 (8.3) | 29 (27.6) |
Gloves use | ||||
Always | 30 (37.5) | 2 (15.4) | 4 (33.3) | 36 (34.3) |
Sometimes | 44 (55.0) | 8 (61.5) | 8 (66.7) | 60 (57.1) |
Never | 6 (7.5) | 3 (23.1) | 0 (0.0) | 9 (8.6) |
Face mask available | ||||
Yes | 44 (55.0) | 11 (84.6) | 8 (66.7) | 63 (60.0) |
No | 36 (45.0) | 2 (15.4) | 4 (33.3) | 42 (40.0) |
Face mask use | ||||
Always | 26 (32.4) | 11 (84.6) | 0 (0.0) | 37 (35.2) |
Sometimes | 27 (33.8) | 1 (7.7) | 9 (75.0) | 37 (35.2) |
Never | 27 (33.8) | 1 (7.7) | 3 (25.0) | 31 (29.6) |
Face shield available | ||||
Yes | 22 (27.5) | 3 (23.1) | 3 (25.0) | 28 (26.7) |
No | 58 (72.5) | 10 (76.9) | 9 (75.0) | 77 (73.3) |
Face shield use | ||||
Always | 4 (5.0) | 0 (0.0) | 0 (0.0) | 4 (3.8) |
Sometimes | 26 (32.5) | 1 (7.7) | 4 (33.3) | 31 (29.5) |
Never | 50 (62.5) | 12 (92.3) | 8 (66.7) | 70 (66.7) |
Zoonotic diseases vaccination status | ||||
Vaccinated | 31 (38.8) | 0 (0.0) | 9 (75.0) | 40 (38.1) |
Not vaccinated | 49 (61.2) | 13 (100.0) | 3 (25.0) | 65 (61.9) |
Variable | AHT n (%) | VPHO n (%) | Vet n (%) | Total n (%) |
---|---|---|---|---|
Exposure to animals/material with Brucellosis | ||||
Often | 63 (78.8) | 2 (15.4) | 8 (66.7) | 73 (69.5) |
Not often | 17 (21.2) | 11 (84.6) | 4 (33.3) | 32 (30.5) |
Exposure to animals/materials with Rabies | ||||
Often | 17 (21.2) | 1 (7.7) | 3 (25.0) | 21 (20.0) |
Not often | 63 (78.8) | 12 (92.3) | 9 (75.0) | 84 (80.0) |
Exposure to animals/material with Bovine Tuberculosis | ||||
Often | 10 (12.5) | 2 (15.4) | 1 (8.3) | 13 (12.4) |
Not often | 70 (87.5) | 11 (84.6) | 11 (91.7) | 92 (87.6) |
Exposure to animals/material with Anthrax | ||||
Often | 14 (17.5) | 2 (15.4) | 1 (8.2) | 17 (16.2) |
Not often | 66 (82.5) | 11 (84.6) | 11 (91.7) | 88 (83.8) |
Exposure to animal vaccines | ||||
Often | 74 (92.5) | 2 (15.4) | 8 (66.7) | 84 (80.0) |
Not often | 6 (7.5) | 11 (84.6) | 4 (33.3) | 21 (20.0) |
Exposure to other potentially infectious materials/animals | ||||
Often | 72 (90.0) | 6 (46.2) | 9 (75.0) | 87 (82.9) |
Not often | 8 (10.0) | 7 (53.8) | 3 (25) | 18 (17.1) |
Exposure to sharps injuries (needle pricks, blade cuts, etc.) | ||||
Often | 65 (81.2) | 4 (30.8) | 9 (75.0) | 78 (74.3) |
Not often | 15 (18.8) | 9 (69.2) | 3 (25.0) | 27 (25.7) |
Zoonotic disease infection | ||||
Yes | 6(7.5) | 0 (0.0) | 0 (0.0) | 6 (5.7) |
No | 74 (92.5) | 13 (100) | 12 (100) | 99 (94.3) |
Variable | AHT (n = 80) n (%) | VPHO (n = 13) n (%) | Vet (n = 12) n (%) | Total (n = 105) N (%) |
---|---|---|---|---|
Need improvement in OHS knowledge | ||||
Yes | 54 (67.5) | 7 (53.8) | 3 (35.0) | 64 (61.0) |
No | 26 (32.5) | 6 (46.2) | 9 (65.0) | 41 (39.0) |
Need improvement in biosecurity/biosafety knowledge | ||||
Yes | 48 (60.0) | 8 (61.5) | 3 (25.0) | 59 (56.2) |
No | 32 (40.0) | 5 (38.5) | 9 (75.0) | 46 (43.8) |
Need improvement in OHS practices to prevent zoonotic disease infections | ||||
Yes | 43 (53.8) | 8 (61.5) | 3 (25.0) | 54 (51.4) |
No | 37 (46.2) | 5 (38.5) | 9 (75.0) | 51 (48.6) |
Need improvement in OHS, biosecurity/biosafety training | ||||
Yes | 60 (75.0) | 12 (92.3) | 4 (33.3) | 76 (72.4) |
No | 20 (25.0) | 1 (7.7) | 8 (66.7) | 29 (27.6) |
Need improvement in OHS, biosecurity/biosafety policies and procedures | ||||
Yes | 69 (86.2) | 12 (92.3) | 8 (66.7) | 89 (84.8) |
No | 11 (13.8) | 1 (7.7) | 4 (33.3) | 16 (15.2) |
Need improvement in PPE availability | ||||
Yes | 55 (68.8) | 5 (38.5) | 6 (50.0) | 66 (62.9) |
No | 25 (31.2) | 8 (61.5) | 6 (50.0) | 39 (37.1) |
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Share and Cite
Mhlongo, S.; Naicker, N.; Singh, T. Assessing Zoonotic Disease Exposure and Occupational Health and Safety Practices Among Veterinary Services Fieldworkers in North West Province, South Africa. Int. J. Environ. Res. Public Health 2025, 22, 1577. https://doi.org/10.3390/ijerph22101577
Mhlongo S, Naicker N, Singh T. Assessing Zoonotic Disease Exposure and Occupational Health and Safety Practices Among Veterinary Services Fieldworkers in North West Province, South Africa. International Journal of Environmental Research and Public Health. 2025; 22(10):1577. https://doi.org/10.3390/ijerph22101577
Chicago/Turabian StyleMhlongo, Sboniso, Nisha Naicker, and Tanusha Singh. 2025. "Assessing Zoonotic Disease Exposure and Occupational Health and Safety Practices Among Veterinary Services Fieldworkers in North West Province, South Africa" International Journal of Environmental Research and Public Health 22, no. 10: 1577. https://doi.org/10.3390/ijerph22101577
APA StyleMhlongo, S., Naicker, N., & Singh, T. (2025). Assessing Zoonotic Disease Exposure and Occupational Health and Safety Practices Among Veterinary Services Fieldworkers in North West Province, South Africa. International Journal of Environmental Research and Public Health, 22(10), 1577. https://doi.org/10.3390/ijerph22101577