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

Ignacio Ruiz-Salcedo; Álvaro Serrano-Ortiz; Rafael Ruiz-Montero; Juan José López-Moyano; Mohamed Farouk Allam; Estefania López-Cabrera; Inmaculada Salcedo-Leal

doi:10.21101/cejph.a8447

March 31, 2026Central European Journal of Public Health

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

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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.

Implication

Analysis reports COVID-19 infection risk among healthcare workers, highlighting implications for safety protocols.

Abstract

COVID-19 infection risk varies by age and HCWs category, decreasing in older HCWs but increasing among residents and certain specialties. During the Omicron variant's dominance, vaccines seemed less effective in reducing transmission. Health education programmes for both patients and HCWs are necessary to limit the spread of the disease.

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Cite This Study

Ruiz-Salcedo et al. (2026) studied this question.

synapsesocial.com/papers/69df2c77e4eeef8a2a6b19e5 https://doi.org/10.21101/cejph.a8447

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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

Implication

Abstract

Discussion

Cite This Study

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

Implication

Abstract

Discussion

Cite This Study

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