Burden of hospital-acquired SARS-CoV-2 infections in Germany: occurrence and outcomes of different variants

Autor: M, Bonsignore, S, Hohenstein, C, Kodde, J, Leiner, K, Schwegmann, A, Bollmann, R, Möller, R, Kuhlen, I, Nachtigall
Rok vydání: 2022
Předmět:
Zdroj: Journal of Hospital Infection. 129:82-88
ISSN: 0195-6701
Popis: Avoiding in-hospital transmissions has been crucial in the COVID-19 pandemic. Little is known on the extent to which hospital-acquired SARS-CoV-2 variants have caused infections in Germany.To analyse the occurrence and the outcomes of HAI with regard to different SARS-CoV-2 variants.Patients with SARS-CoV-2 infections hospitalized between March 1In all, 62,875 SARS-CoV-2 patients were analysed, of whom 10.6% had HAI. HAIs represented 14.7% of SARS-CoV-2 inpatients during the Wildtype period, 3.5% during Alpha (odds ratio: 0.21; 95% confidence interval: 0.19-0.24), 8.8% during Delta (2.70; 2.35-3.09) and 10.1% during Omicron (1.10; 1.03-1.19). When age and comorbidities were accounted for, HAI had lower odds for death than community-acquired infections (0.802; 0.740-0.866). Compared to the Wildtype period, HAIs during Omicron were associated with lower odds for ICU (0.78; 0.69-0.88), ventilation (0.47; 0.39-0.56), and death (0.33; 0.28-0.40).Hospital-acquired SARS-CoV-2 infections occurred throughout the pandemic, affecting highly vulnerable patients. Although transmissibility increased with newer variants, the proportion of HAIs decreased, indicating improved infection prevention and/or the effect of immunization. Furthermore, the Omicron period was associated with improved outcomes. However, the burden of hospital-acquired SARS-CoV-2 infections remains high.
Databáze: OpenAIRE