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SARS-COV-2, infection, transmission, transcription, translation, proteins, and treatment: A review.

ABSTRACT: In this review, we describe the key molecular entities involved in the process of infection by SARS-CoV-2, while also detailing how those key entities influence the spread of the disease. We further introduce the molecular mechanisms of preventive and treatment strategies including drugs, antibodies, and vaccines.

SUBMITTER: Emrani J

PROVIDER: S-EPMC8552795 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature

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SARS-COV-2, infection, transmission, transcription, translation, proteins, and treatment: A review.

Emrani Jahangir J Ahmed Maryam M Jeffers-Francis Liesl L Teleha John C JC Mowa Nathan N Newman Robert H RH Thomas Misty D MD

International journal of biological macromolecules 20211028 Pt B

In this review, we describe the key molecular entities involved in the process of infection by SARS-CoV-2, while also detailing how those key entities influence the spread of the disease. We further introduce the molecular mechanisms of preventive and treatment strategies including drugs, antibodies, and vaccines. ...[more]

PMID: 34756970

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Project description:BackgroundGlobal evidence on the transmission of asymptomatic SARS-CoV-2 infection needs to be synthesized.MethodsA search of 4 electronic databases (PubMed, EMBASE, Cochrane Library, and Web of Science databases) as of January 24, 2021 was performed. Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed. Studies which reported the transmission rate among close contacts with asymptomatic SARS-CoV-2 cases were included, and transmission activities occurred were considered. The transmission rates were pooled by zero-inflated beta distribution. The risk ratios (RRs) were calculated using random-effects models.ResultsOf 4923 records retrieved and reviewed, 15 studies including 3917 close contacts with asymptomatic indexes were eligible. The pooled transmission rates were 1.79 per 100 person-days (or 1.79%, 95% confidence interval [CI] 0.41%-3.16%) by asymptomatic index, which is significantly lower than by presymptomatic (5.02%, 95% CI 2.37%-7.66%; p<0.001), and by symptomatic (5.27%, 95% CI 2.40%-8.15%; p<0.001). Subgroup analyses showed that the household transmission rate of asymptomatic index was (4.22%, 95% CI 0.91%-7.52%), four times significantly higher than non-household transmission (1.03%, 95% CI 0.73%-1.33%; p=0.03), and the asymptomatic transmission rate in China (1.82%, 95% CI 0.11%-3.53%) was lower than in other countries (2.22%, 95% CI 0.67%-3.77%; p=0.01).ConclusionsPeople with asymptomatic SARS-CoV-2 infection are at risk of transmitting the virus to their close contacts, particularly in household settings. The transmission potential of asymptomatic infection is lower than symptomatic and presymptomatic infections. This meta-analysis provides evidence for predicting the epidemic trend and promulgating vaccination and other control measures. Registered with PROSPERO International Prospective Register of Systematic Reviews, CRD42021269446; https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=269446.

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SARS-COV-2, infection, transmission, transcription, translation, proteins, and treatment: A review.

Publications

SARS-COV-2, infection, transmission, transcription, translation, proteins, and treatment: A review.

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