A comparison of the protective effect of vaccination and clinical features between the SARS-CoV-2 wild-type strain and Delta (B.1.617.2) variant
Archives of medical science : AMS
; 18(6):1678-1682, 2022.
Article
in English
| EuropePMC | ID: covidwho-2125368
ABSTRACT
Introduction This study aimed to investigate the clinical features and vaccine effectiveness of patients with the SARS-CoV-2 wild-type strain and the Delta variant. Methods We retrospectively evaluated patients with the SARS-CoV-2 wild-type strain and the Delta variant. Results The Delta-variant group showed a higher infection rate in minors, who had higher incidence of anosmia or dysgeusia and shorter incubation period. Unvaccinated patients had a 15.59-fold higher risk of severe classification than vaccinated patients. The viral clearance time was significantly shorter in the Delta-variant group. Conclusions The Delta-variant group show higher transmissibility, and vaccination reduces the incidence of severe classification and promotes viral clearance.
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Collection:
Databases of international organizations
Database:
EuropePMC
Type of study:
Experimental Studies
/
Prognostic study
Topics:
Vaccines
/
Variants
Language:
English
Journal:
Archives of medical science : AMS
Year:
2022
Document Type:
Article
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