Clinical characteristics and severity of beta and delta variants of SARS-CoV-2 and the effect of vaccine on delta variants
Heliyon, ISSN: 2405-8440, Vol: 8, Issue: 12, Page: e12594
2022
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Most Recent News
Researchers from First Affiliated Hospital of Harbin Medical University Describe Findings in COVID-19 (Clinical characteristics and severity of beta and delta variants of SARS-CoV-2 and the effect of vaccine on delta variants)
2023 JAN 06 (NewsRx) -- By a News Reporter-Staff News Editor at NewsRx COVID-19 Daily -- Fresh data on COVID-19 are presented in a new
Article Description
The Delta variant of concern (VOC) is rapidly becoming the dominant strain globally. We report the clinical characteristics and severity of hospitalized patients infected with Delta and Beta VOCs during the local outbreak in Harbin, Heilongjiang Province, China, and the effect of vaccines on the Delta variant. We collected a total of 735 COVID-19 patients from the First Affiliated Hospital of Harbin Medical University, including 96 cases infected with the Delta VOC and 639 cases infected with the Beta VOC. Demographic, clinical characteristic and laboratory findings were collected and compared. Differences in viral shedding, IgG and IgM levels, and the neutrophil-to-lymphocyte ratio were noted between the Delta and Beta VOCs (p < 0.05). Survival analysis of the two groups revealed longer viral shedding of the Delta VOC (p < 0.05). For the Delta VOC, the longer the vaccination period, the lower the IgG and IgM levels. IgM levels were higher in the convalescent plasma group, whereas lymphocyte counts were lower. Delta VOC virus shedding was longer compared with Beta VOC shedding. Vaccination with inactivated vaccines can reduce the severe illness rate of the Delta VOC. IgG and IgM levels are reduced as the time period between the first and second vaccine doses increases.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S2405844022038828; http://dx.doi.org/10.1016/j.heliyon.2022.e12594; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85144970997&origin=inward; http://www.ncbi.nlm.nih.gov/pubmed/36590565; https://linkinghub.elsevier.com/retrieve/pii/S2405844022038828; https://dx.doi.org/10.1016/j.heliyon.2022.e12594
Elsevier BV
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