Open AccessLe variant delta du SRAS-CoV-2 : revue de la littérature
Author(s) -
Amin Baziz,
AUTHOR_ID,
Rachid Chaib,
Salah Aberkane,
Mohammed Bougofa,
Mébarek Djebabra,
Imad Mennai,
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AUTHOR_ID,
AUTHOR_ID
Publication year - 2022
Publication title -
batna journal of medical sciences
Language(s) - English
Resource type - Journals
ISSN - 2437-0665
DOI - 10.48087/bjmsra.2022.s913
Subject(s) - pandemic , lineage (genetic) , vaccination , medicine , virology , transmissibility (structural dynamics) , covid-19 , intensive care medicine , disease , biology , genetics , gene , infectious disease (medical specialty) , physics , pathology , vibration isolation , quantum mechanics , vibration
The ongoing pandemic of COVID-19 is causing more health, economic and social issues worldwide. As of July 5, 2021, the world registered more than 184 million cases across 222 countries; more than 4 million have died from the deadly infection. The SARSCoV-2 continues spreading globally; new variants emerge randomly due to errors in the virus' gRNAs replication process. The present paper treats the new delta variant of concern, also known as B.1.617.2 lineage. The study highlights transmissibility, vaccine effectiveness, pathogenicity, and the likelihood of hospital admission related to delta variant infection based on a literature review of 10 indexed databases. The findings indicate high transmissibility of the B.1.617.2 lineage, approving it to be the dominant strain worldwide. Also, reduced vaccine effectiveness is confirmed. However, approved vaccines for emergency use remain valuable against COVID-19's delta variant. Finally, the risk of hospitalization seems to be twice in the case of delta variant infection. A combined approach of vaccination and nonpharmaceutical interventions is the leading way to contain the ongoing pandemic of COVID-19. Keywords: SARS-CoV-2; delta variant; literature review.