Abstract
Vaccination coverage against COVID-19 among health care workers (HCWs) of the University Health Agency Giuliano-Isontina (ASUGI) of Trieste (North-eastern Italy) by 1 January 2022 was 90.4% with at least one vaccine dose, 84.9% with at least 2 doses, and 75.1% with 3 doses, 98.2% with Comirnaty (Pfizer BioNtech, New York, NY, USA) versus 1.8% with Spikevax (Moderna, Cambridge, MA, USA). From 1 October 2020 to 7 February 2022, 1652 SARS-CoV-2 infections were notified in HCWs of ASUGI Trieste. Although the overall risk of SARS-CoV-2 contagion increased over time, the rate of occupational infections progressively declined, from 42.5% during the second COVID-19 wave to 15.6% in the fifth. Between 1 January-7 February 2022 (a period dominated by the Omicron variant), albeit no COVID-19-associated hospitalizations were recorded in HCWs of ASUGI Trieste, 669 SARS-CoV-2 infections were counted against 367 cases observed from 1 October to 31 December 2020, the 3 months preceding the implementation of the vaccination campaign against COVID-19. Job tasks and health care settings turned out to be the most significant risk factors for SARS-CoV-2 infection. However, the effect of workplace prevailed over job task on the biological risk, with greater rates of SARS-CoV-2 infections observed among HCWs operating in areas with higher levels of circulation of the virus, particularly COVID-19 dedicated units.
Keywords: COVID-19; SARS-CoV-2; biological risk; health care-associated infection; health protection measures; job task; occupational risk; vaccines.
【저자키워드】 COVID-19, SARS-CoV-2, Vaccines, biological risk, health care-associated infection, health protection measures, job task, occupational risk, 【초록키워드】 vaccination, Health care, Hospitalization, Vaccines, SARS-COV-2 infection, health care workers, variant, Infection, risk, Italy, risk factor, omicron, virus, vaccine dose, Pfizer, Coverage, Health, Workplace, HCWs, implementation, Health care worker, Omicron variant, circulation, USA, university, New York, health protection, Care, SARS-CoV-2 infections, Moderna, Contagion, job, HCW, doses, Trieste, Cambridge, greater, declined, were recorded, 【제목키워드】 Italy, omicron, Impact, occupational, worker,