| COVID-19 | coronavirus disease 2019 |
| HCWs | healthcare workers |
| KSA | Kingdom of Saudi Arabia |
| RT-PCR | real-time reverse transcriptase polymerase chain reaction |
| COVID-19 | coronavirus disease 2019 |
| HCWs | healthcare workers |
| KSA | Kingdom of Saudi Arabia |
| RT-PCR | real-time reverse transcriptase polymerase chain reaction |