Background: Coronavirus disease 2019 (COVID-19) is a pandemic caused by a virus called severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Health-care workers (HCWs) are at a high risk of contracting SARS-CoV-2 infection. Thus, different infection control strategies have been used to reduce SARS-CoV-2 transmission. Our study aims to assess the level of adherence of HCWs to the preventive measures against COVID-19 in Saudi Arabia. Methods: An observational study was carried out using data collected by a self-administrated dual-language (Arabic and English) online questionnaire directed to HCWs in Saudi Arabia to measure the level of adherence to COVID-19 preventive measures. All HCWs involved in patient care in Saudi Arabia were included in this study. Results: A total of 214 HCWs were included in the study (median age = 30 years; 62% male). Among all the participants, 65% of HCWs were in direct contact with COVID-19 patients, and 18% were diagnosed with COVID-19. The level of overall adherence to mask use was 82%. HCWs were committed to wearing gloves, gowns, and goggles with a percent of 95%, 85%, and 68%, respectively. Conclusion: Our findings demonstrated that HCWs in Saudi Arabia have an acceptable level of adherence to COVID-19 preventive measures during the pandemic. Larger studies are required to evaluate the effectiveness of these preventive measures in reducing the transmission of respiratory microbes between HCWs and patients.

Background: Adopting a healthy lifestyle through a balanced diet and regular physical activity is essential for chronic disease prevention, but healthcare workers face occupational constraints that may limit such behaviors. This study assessed perceived capability for healthy diet and physical activity among healthcare workers in the Jazan region of Saudi Arabia using the Capability Assessment for Diet and Activity (CADA) instrument and examined associated factors. Methods: A cross-sectional analytical study was conducted in 2026 in governmental healthcare facilities in the Jazan Health Cluster. A structured electronic questionnaire collected sociodemographic, occupational, and health-related data alongside the 34-item CADA. Total, Diet and Physical Activity CADA scores (1–5) were analyzed using descriptive statistics and multivariable ordinary least squares regression adjusted for sex, education, profession, and workplace; standardized coefficients and Cohen’s f² were reported. Results: A total of 601 healthcare workers participated. Internal consistency was good (Cronbach’s α = 0.84 for the full scale). Mean Total CADA was 3.28 ± 0.80 (scale midpoint 3.0); perceived Diet capability (3.45 ± 0.85) was higher than perceived Physical Activity capability (3.11 ± 0.85). Female sex was independently associated with lower Physical Activity CADA (β = −0.16; 95% CI −0.32 to −0.01; p = 0.042). Bachelor’s and board/doctoral qualifications were associated with higher Total CADA (β = 0.20; 95% CI 0.02 to 0.38; p = 0.026 and β = 0.33; 95% CI 0.07 to 0.58; p = 0.013, respectively). Compared with hospital-based participants, those in primary healthcare centers had lower Total (β = −0.19; 95% CI −0.32 to −0.05; p = 0.007), Diet (β = −0.17; 95% CI −0.31 to −0.02; p = 0.024) and Physical Activity (β = −0.21; 95% CI −0.35 to −0.06; p = 0.006) CADA scores. Effect sizes were small (|β*| ≤ 0.16; R² = 0.076–0.082; Cohen’s f² = 0.08–0.09). Conclusions: As CADA captures perceived capability, these findings reflect self-perception rather than objectively measured behavior; longitudinal studies combining CADA with validated behavioral instruments are warranted to clarify whether perceived capability translates into actual dietary and physical-activity behaviors in healthcare workers, and to evaluate whether workplace-based interventions targeting time pressure and access to supportive environments improve both perceived capability and measured behavior.