laboratory personnel Article 5 human 5 COVID-19 3 coronavirus disease 2019 3 female 3 health care personnel 3 COVID-19 testing 2 Severe acute respiratory syndrome coronavirus 2 2 adult 2 cross-sectional study 2 dentist 2 disease control 2 human tissue 2 major clinical study 2 male 2 middle aged 2 nurse 2 pandemic 2 pharmacist 2 physician 2 Adult 1 Africa 1 Anxiety 1 Biclonal gammopathy 1 Clinical laboratory services 1 Coronavirus disease 2019 1 Cross-Sectional Studies 1 Depression, Anxiety and Stress Scale 1 Female 1