Impact of prior vaccination on clinical outcomes of patients with COVID-19

Autor: Woo Jung Seo, Jiyeon Kang, Hyung Koo Kang, So Hee Park, Hyeon-Kyoung Koo, Hye Kyeong Park, Sung-Soon Lee, Je Eun Song, Yee Gyung Kwak, Jieun Kang
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Emerging Microbes and Infections, Vol 11, Iss 1, Pp 1316-1324 (2022)
Druh dokumentu: article
ISSN: 22221751
2222-1751
DOI: 10.1080/22221751.2022.2069516
Popis: Fully vaccinated people remain at risk of Coronavirus Disease 2019 (COVID-19). We examined association between prior vaccination and clinical outcomes in patients with COVID-19. Overall, 387 patients with mild-to-severe COVID-19 were enrolled. Patients were considered fully vaccinated at least 14, 7, and 14 days after receiving the second dose of ChAdOx1 nCoV-19 or mRNA-1273, second dose of BNT162b2, or single dose of Ad26.COV2.S, respectively. The primary outcomes (risk of pneumonia, requirement of supplemental oxygen, and progression to respiratory failure) were compared between vaccinated and unvaccinated patients. Logistic regression analysis was performed to identify factors associated with the outcomes. There were 204 and 183 patients in the vaccinated and unvaccinated groups, respectively. The vaccinated group was significantly older and had more comorbidities than the unvaccinated group. Patients in the unvaccinated group were significantly more likely to develop pneumonia (65.6% vs. 36.8%) or require supplemental oxygen (29.0 vs. 15.7%) than the vaccinated group. The vaccinated group had a significantly shorter time from symptom onset to hospital discharge than the unvaccinated group (10 vs. 11 days; p
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