Prevalence and Main Clinical Characteristics of Fully Vaccinated Patients Admitted to Hospital for Delta Variant COVID-19

Bibliographic Details
Title: Prevalence and Main Clinical Characteristics of Fully Vaccinated Patients Admitted to Hospital for Delta Variant COVID-19
Authors: Matteo Vassallo, Nicolas Clement, Laurene Lotte, Sabrina Manni, Audrey Sindt, Pierre M. Bertrand, Jacques Durant
Source: Frontiers in Medicine, Vol 9 (2022)
Publisher Information: Frontiers Media S.A., 2022.
Publication Year: 2022
Collection: LCC:Medicine (General)
Subject Terms: COVID-19, delta variant, vaccination, patients, hospitalization, Medicine (General), R5-920
More Details: ObjectivesThe Delta variant of the novel beta coronavirus responsible for the current coronavirus pandemic (COVID-19) spread across Europe during the summer of 2021. Little is known of vaccine efficacy on this variant. Our aim was to study the prevalence and clinical characteristics of fully vaccinated subjects admitted to hospital for Delta variant COVID-19.MethodsWe identified patients admitted to Cannes hospital for Delta-variant-related Covid-19 infection from July to September 2021. Their main demographic parameters, inflammatory markers, and clinical characteristics were recorded. Differences between fully vaccinated subjects and unvaccinated or incompletely vaccinated individuals were analyzed.ResultsWe included 126 patients (57% male, mean age 64 years, mean delay since symptoms onset 7.8 days). Among admitted patients, 94 (75%) were not vaccinated, 11 (8%) incompletely so and 21 (17%) were fully vaccinated. Fully vaccinated patients were older (77 vs. 61 vs. 62 years, p = 0.003), with fewer days since symptoms onset (5.9 vs. 8.0 vs. 9.3 days, p = 0.035) than unvaccinated or incompletely vaccinated patients, respectively. Severe pneumonia was less frequent among completely vaccinated subjects (67 vs. 84 vs. 100%, p = 0.038), while rates of transfer to the ICU, mechanical ventilation or death did not differ. Thirteen fully vaccinated patients underwent a thoracic CT scan, revealing involvement of lung parenchyma in four of them.DiscussionPrevalence of hospitalization for Delta-variant COVID-19 in fully vaccinated subjects was low and, despite their age and comorbid conditions, these patients had a high rate of favorable outcome.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2296-858X
Relation: https://www.frontiersin.org/articles/10.3389/fmed.2022.809154/full; https://doaj.org/toc/2296-858X
DOI: 10.3389/fmed.2022.809154
Access URL: https://doaj.org/article/91e209285a1b4558aeb23f1f6c2aaa3c
Accession Number: edsdoj.91e209285a1b4558aeb23f1f6c2aaa3c
Database: Directory of Open Access Journals
More Details
ISSN:2296858X
DOI:10.3389/fmed.2022.809154
Published in:Frontiers in Medicine
Language:English