Demography and COVID-19 Symptoms of South African Oral Health Workers in an Academic Hospital


  • Simon Nemutandan School of Oral Health Sciences, University of the Witwatersrand, Johannesburg, South Africa. President, Health Professions Council of South Africa Health
  • Yolanda Malele-Kolisa Head of Clinical Unit, Department of Community Dentistry, Wits School of Oral Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
  • Elaine Blignaut Department of Oral Biological Sciences, Wits School of Oral Health Sciences; 7 York Road, Parktown, 2193, Johannesburg.



asymptomatic, occupancy


Oral health care workers constitute a high-risk profession to contract COVID-19. The aim of this study was to determine the prevalence and clinical experience of COVID-19 infected oral health workers at an academic hospital in Gauteng, South Africa. A cross-sectional, questionnaire-based study was conducted among staff who contracted COVID-19 betweenMay and December 2020. Data was captured in Excel and analyzed with Stata (StataCorp, USA). COVID-19 prevalence among 219 members of staff was
22.4%, and 46 participated. The majority ranged in age between 31- 40 years (n=18, 39%, 95% CI 25.78-54.32) and 41 – 50 years (n=19, 41%, 95% CI 7.88-56.4). Clinicians and dental assistants constituted 48%, while 76% perceived to be infected at work, with 72.7% sharing an office with ≥ 3 persons. Twenty-four staff members received post-test counselling, of whom 21.7% were counselled at work. Sixteen participants remained asymptomatic while most prevalent self-reported COVID-19 symptoms included cough (47.7%), sore throat (27.3%) and shortness of breath (20.5%). Significantly more females (55%) reported no COVID-19 symptoms than males (Chi2
test, p = 0.01). The COVID-19 prevalence in this study was much higher than previously reported for oral health workers in an
academic setting. The high percentage of staff who remained asymptomatic raises the possibility of more staff being infected without being tested. Infection prevention and awareness training of all staff should be routinely provided and mitigating measures instituted to reduce office occupancy, including adequate post-test counselling


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Worldodometer. COVID-19 CORONAVIRUS OUTBREAK. 2020. [cited 2021 May 22] Available from: https://www.

South African Government News Agency. President Ramaphosa announces a nationwide lockdown. 2020. [cited 2020 June 21] Available from:

South African Government. DISASTER MANAGEMENT ACT, 2002 DECLARATION OF A NATIONAL STATE OF DISASTER. Pretoria: Government Printer, Pretoria; 2020. [cited 2020 June 20] Available from:


Hatefi S, Smith F, Abou-El-Hossein K, et al. COVID-19 in South Africa: lockdown strategy and its effects on public health and other contagious diseases. Public Health 2020;185:159-60.

Chersich MF, Gray G, Fairlie L, et al. COVID-19 in Africa: care and protection for frontline healthcare workers. Global Health 2020;16:46.

Chang D, Xu HJ, Rebaza A,et al. Protecting healthcare workers from subclinical coronavirus infection. Lancet Respir Med. 2020. doi: 10.1016/ S2213- 2600(20)30066-7

Iacobucci G. Covid-19: GP surgeries close for two weeks after staff test positive. BMJ 2020;368:m936.

Soriano V, Barreiro P. Impact of New Coronavirus Epidemics on HIV-Infected Patients. AIDS Rev 2020;22:57-8.

Zhu F, Cao Y, Xu S, Zhou al. Co-infection of SARS-CoV-2 and HIV in a patient in Wuhan city, China. J Med Virol 2020;92:529-30.

Grobler L, Mehtar S, Dheda K, et al. The epidemiology of tuberculosis in health care workers in South Africa: a systematic review. BMC Health Serv Res 2016;16:416.

Huang Z, Zhuang D, Xiong B, et al. Occupational exposure to SARS-CoV-2 in burns treatment during the COVID-19 epidemic: Specific diagnosis and treatment protocol. Biomed Pharmacother 2020;127:110176.

Kang L, Li Y, Hu S, et al. The mental health of medical workers in Wuhan, China dealing with the 2019 novel coronavirus. Lancet Psychiatry 2020;7:e14.

Rose C. Am I Part of the Cure or Am I Part of the Disease? Keeping Coronavirus Out When a Doctor Comes Home. N Engl J Med 2020;382:1684-5.

McMahon DE, Peters GA, Ivers LC, et al. Global resource shortages during COVID-19: Bad news for low-income countries. PLoS Negl Trop Dis 2020;14:e0008412.

Xiao H, Zhang Y, Kong D, et al. The Effects of Social Support on Sleep Quality of Medical Staff Treating Patients with Coronavirus Disease 2019 (COVID-19) in January and February 2020 in China. Med Sci Monit 2020;26:e923549.

O'Sullivan ED. PPE guidance for covid-19: be honest about resource shortages. BMJ 2020;369:m1507.

Rimmer A. Covid-19: GPs call for same personal protective equipment as hospital doctors. BMJ 2020;368:m1055.

Moberly T. Chinese premier rallies medics in coronavirus fight. BMJ 2020;368:m343.

Kapata N, Ihekweazu C, Ntoumi F, et al. Is Africa prepared for tackling the COVID-19 (SARS-CoV-2) epidemic. Lessons from past outbreaks, ongoing panAfrican public health efforts, and implications for the future. Int J Infect Dis 2020;93:233-6.

Nkengasong JN, Mankoula W. Looming threat of COVID-19 infection in Africa: act collectively, and fast. Lancet 2020;395:841-2.

Makoni M. Africa prepares for coronavirus. Lancet 2020;395:483.

Koh D. Occupational risks for COVID-19 infection. 274 > RESEARCH / SADJ Vol. 77 No. 5Occup Med (Lond) 2020;70:3-5.

Gilbert M, Pullano G, Pinotti F, et al. Preparedness and vulnerability of African countries against importations of COVID-19: a modelling study. Lancet 2020;395:871-7.

Phan LT, Maita D, Mortiz DC, et al. Personal protective equipment doffing practices of healthcare workers. J Occup Environ Hyg 2019;16:575-81.

Mahase E. Covid-19: hoarding and misuse of protective gear is jeopardising the response, WHO warns. BMJ 2020;368:m869.

Phagane T. 2020 Headlines: Corruption in procurement of PPE. SABC News; 2020. [cited 2021 April 20] Available from:https://www.

Kluytmans-van den Bergh MFQ, Buiting AGM, Pas SD, et al. Prevalence and Clinical Presentation of Health CareWorkers With Symptoms of Coronavirus Disease. JAMA Netw Open 2020;3(5):e209673.

Lai X, Wang M, Qin C, et al. Coronavirus Disease 2019 (COVID-2019) Infection Among Health CareWorkers and Implications for Prevention Measures in a Tertiary Hospital inWuhan, China. JAMA Netw Open 2020;3(5): e209666.

Shange N. Coronavirus infection rate among health workers in SA is 5% — below global average ( Times Live. Johannesburg, South Africa: Sunday Times; 2020. [cited 2021 February 5] Available from:


Lu CW, Liu XF, Jia ZF. 2019-nCoV transmission through the ocular surface must not be ignored. Lancet 2020;395:e39.

Lai THT, Tang EWH, Chau SKY, et al. Stepping up infection control measures in ophthalmology during the novel coronavirus outbreak: an experience from Hong Kong. Graefes Arch Clin Exp Ophthalmol 2020. doi: 10.1001/jamanetworkopen.2020.9666

Gamio L. The Workers Who Face the Greatest Coronavirus Risk. New York Times. New York; 2020. [cited 2020 August 15] Available from:

Kowalski LP, Sanabria A, Ridge JA, et al. COVID-19 pandemic: Effects and evidence-based recommendations for otolaryngology and head and neck surgery practice. Head Neck 2020;42:1259-67.

Estrich CG, Mikkelsen M, Morrissey R, et al. Estimating COVID-19 prevalence and infection control practices among US dentists. J Am Dent

Assoc 2020;151:815-24.

Gallus S, Paroni L, Re D, et al. SARS-CoV-2 Infection among the Dental Staff from Lombardy Region, Italy. Int J Environ Res Public Health 2021;18. doi: 10.3390/ijerph18073711

Jungo S, Moreau N, Mazevet ME, et al. Prevalence and risk indicators of first-wave COVID-19 among oral health-care workers: A French epidemiological survey. PLoS One 2021;16:e0246586.

Sebastian P, Jorge P, Ariel G, et al. Assesment of SARS-CoV-2 infection-in dentists and supporting staff at a university dental hospital in Argentina. J Oral Biol Craniofac Res 2021;11:169-73.

Turner KJ, Le Grange K, Nkgadima R. TIMELINE : 10 months of Covid-19 in SA. IOL; 2021. [cited 2021 May 21] Available from:

Mandic-Rajcevic S, Masci F, Crespi E, et al. Source and symptoms of COVID-19 among hospital workers in Milan. Occup Med (Lond) 2020;70:672-9.

Talbot LR, Romeiser JL, Spitzer ED, et al. Prevalence of IgM and IgG antibodies to SARS-CoV-2 in health care workers at a tertiary care New York hospital during the Spring COVID-19 surge. Perioper Med (Lond) 2021;10:7.

Schraer R. Coronavirus: What's the risk on transport? Unite Kingdom: BBC News; 2020. [cited January 10] Available from:

Nakweya G. Public transport could stifle Africa’s COVID-19 control. Nairobi, Kenya: SciDevNet; 2020. [Cited 2021 March 2] Available from:

Morawska L, Tang JW, Bahnfleth W, et al. How can airborne transmission of COVID-19 indoors be minimised? Environ Int 2020;142:105832.

Alshahrani MS, Alnimr A, Alnassri S, et al. Prevalence of the SARS-CoV-2 Infection Among PostQuarantine Healthcare Workers. J Multidiscip Healthc 2020;13:1927-36.

Abohamr SI, Aldossari MA, Alaklobi FA, et al. Clinical characteristics and in-hospital outcome of medical staff infected with COVID-19 in Saudi Arabia. A retrospective single-center study. Saudi Med J 2020;41:1336-43.

Kim R, Nachman S, Fernandes R, et al. Comparison of COVID-19 infections among healthcare workers and non-healthcare workers. PLoS One 2020;15:e0241956.

Huete-Perez JA, Cabezas-Robelo C, Paiz-Medina L, et al. First report on prevalence of SARS-CoV-2 infection among health-care workers in Nicaragua. PLoS One 2021;16:e0246084.

Hunter-Adams J, Battersby J. Health care providers' perspectives of diet-related non-communicable disease in South Africa. BMC Public Health 2020;20:262.

van Zyl S, van Rooyen FC, Joubert G, et al. A Comparison of the Socio-Behavioral-Metabolic Risk Profiles and Associated Factors for Chronic Diseases of Lifestyle in Urban and Rural Communities in Central South Africa. Front Public Health 2020;8:570676.

Mohr NM, Harland KK, Krishnadasan A, et al. Diagnosed and Undiagnosed COVID-19 in US Emergency Department Health Care Personnel: A Cross-sectional Analysis. Ann Emerg Med 2020. doi: 10.1016/j.annemergmed.2020.12.007

Mukhtar A, Afishawy M, Alkhatib E, et al. Asymptomatic SARS-CoV-2 infection among healthcare workers in a non-COVID-19 Teaching University Hospital. J Public Health Res 2021. doi: 10.4081/jphr.2021.2102

Al-Qahtani AA. Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2): Emergence, History, Basic and Clinical Aspects. Saudi J

Biol Sci. 2020/04/28 edn; 2020. doi: 10.1016/j.sjbs.2020.04.033 RESEARCH < 275

Gholami M, Fawad I, Shadan S, et al. COVID-19 and healthcare workers: A systematic review and metaanalysis. Int J Infect Dis 2021;104:335-46.

Nicolas D, Camos-Carreras A, Spencer F, et al. A Prospective Cohort of SARS-CoV-2-Infected Health Care Workers: Clinical Characteristics, Outcomes, and Follow-up Strategy. Open Forum Infect Dis 2021;8:ofaa592.

Kandakure VT, Valvi HR, Khokle P, et al. Prevalence and Recovery from Newly Onset Anosmia and Ageusia in Covid 19 Patients at our Teritary Care Centre. Indian J Otolaryngol Head Neck Surg 2021:1-8.

Sbrana MF, Fornazieri MA, Bruni-Cardoso A, etl. Olfactory Dysfunction in Frontline Health Care Professionals During COVID-19 Pandemic in Brazil. Front Physiol 2021;12:622987.

Persoon IF, Volgenant CMC, van der Veen MH, et al. [Impact of the coronavirus on Dutch oral health care and practice]. Ned Tijdschr Tandheelkd 2021;128:211-20.[In Dutch]

Temsah MH, Al-Sohime F, Alamro N, et al. The psychological impact of COVID-19 pandemic on health care workers in a MERS-CoV endemic country. J Infect Public Health 2020;13:877-82.

Xiao X, Zhu X, Fu S, et al. Psychological impact of healthcare workers in China during COVID-19 pneumonia epidemic: A multi-center cross-sectional survey investigation. J Affect Disord 2020;274:405-10




How to Cite

Nemutandan, S. ., Malele-Kolisa, Y., & Blignaut, E. . (2022). Demography and COVID-19 Symptoms of South African Oral Health Workers in an Academic Hospital. South African Dental Journal, 77(05), 270–276.

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