Incidence and risk factors of COVID-19 infection in healthcare workers at a tertiary referral centre: from the first to the sixth wave of the pandemic

Key Points

• To assess the incidence and risk factors of COVID-19 infection among healthcare workers at a tertiary referral center throughout the pandemic's six waves.
• Analyzed incidence of COVID-19 among healthcare workers during different pandemic waves.
• Categorized healthcare workers by age and specialty to identify risk variations.
• Evaluated the impact of the Omicron variant and vaccine effectiveness on transmission.
• Incidence of COVID-19 infection varied by age and healthcare worker category.
• Older healthcare workers showed reduced incidence, while residents faced increased risk.
• Vaccine effectiveness in reducing transmission appeared lower during the Omicron variant's dominance.

Abstract