Detailed Information on Publication Record
2024
Post-vaccination, post-infection and hybrid immunity against severe cases of COVID-19 and long COVID after infection with SARS-CoV-2 Omicron subvariants, Czechia, December 2021 to August 2023
ŠMÍD, Martin, Tamara BARUSOVÁ, Jiří JARKOVSKÝ, Ondřej MÁJEK, Tomáš PAVLÍK et. al.Basic information
Original name
Post-vaccination, post-infection and hybrid immunity against severe cases of COVID-19 and long COVID after infection with SARS-CoV-2 Omicron subvariants, Czechia, December 2021 to August 2023
Authors
ŠMÍD, Martin, Tamara BARUSOVÁ, Jiří JARKOVSKÝ (203 Czech Republic, belonging to the institution), Ondřej MÁJEK (203 Czech Republic, belonging to the institution), Tomáš PAVLÍK (203 Czech Republic, belonging to the institution), Lenka PŘIBYLOVÁ (203 Czech Republic, belonging to the institution), Josefína WEINEROVÁ, Milan ZAJÍČEK and Jan TRNKA (guarantor)
Edition
Eurosurveillance, European Centre for Disease Prevention and Control, 2024, 1025-496X
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
30303 Infectious Diseases
Country of publisher
Sweden
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 19.000 in 2022
Organization unit
Faculty of Medicine
UT WoS
001308042700002
Keywords in English
COVID-19; SARS-CoV-2 Omicron subvariants; post-vaccination; post-infection; hybrid immunity
Tags
International impact, Reviewed
Změněno: 1/10/2024 10:04, Mgr. Tereza Miškechová
Abstract
V originále
Background COVID-19 remains a major infectious disease with substantial implications for individual and public health including the risk of a post-infection syndrome, long COVID. The continuous changes in dominant variants of SARS-CoV-2 necessitate a careful study of the effect of preventative strategies. Aim We aimed to estimate the effectiveness of post-vaccination, post-infection and hybrid immunity against severe cases requiring oxygen support caused by infections with SARS-CoV-2 variants BA1/2 and BA4/5+, and against long COVID in the infected population and their changes over time. Methods We used a Cox regression analysis with time-varying covariates and calendar time and logistic regression applied to national-level data from Czechia from December 2021 until August 2023. Results Recently boosted vaccination, post-infection and hybrid immunity provide significant protection against a severe course of COVID-19, while unboosted vaccination more than 10 months ago has a negligible protective effect. The post-vaccination immunity against the BA1/2 or BA4/5+ variants, especially based on the original vaccine types, appears to wane rapidly compared with post-infection and hybrid immunity. Once infected, however, previous immunity plays only a small protective role against long COVID. Conclusion Vaccination remains an effective preventative measure against a severe course of COVID-19 but its effectiveness wanes over time thus highlighting the importance of booster doses. Once infected, vaccines may have a small protective effect against the development of long COVID.
Links
MUNI/A/1132/2022, interní kód MU |
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101063853, interní kód MU |
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