Viral loads and profile of the patients infected with SARS-CoV-2 Delta, Alpha, or R.1 variants in Tokyo.
COVID-19
Delta variant
SARS-CoV-2
melting curve analysis
viral load
Journal
Journal of medical virology
ISSN: 1096-9071
Titre abrégé: J Med Virol
Pays: United States
ID NLM: 7705876
Informations de publication
Date de publication:
04 2022
04 2022
Historique:
revised:
17
11
2021
received:
20
10
2021
accepted:
24
11
2021
pubmed:
27
11
2021
medline:
25
2
2022
entrez:
26
11
2021
Statut:
ppublish
Résumé
The rapid spread of the Delta variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) became a serious concern worldwide in summer 2021. We examined the copy number and variant types of all SARS-CoV-2-positive patients who visited our hospital from February to August 2021 using polymerase chain reaction (PCR) tests. Whole genome sequencing was performed for some samples. The R.1 variant (B.1.1.316) was responsible for most infections in March, replacing the previous variant (B.1.1.214); the Alpha (B.1.1.7) variant caused most infections in April and May; and the Delta variant (B.1.617.2) was the most prevalent in July and August. There was no significant difference in the copy numbers among the previous variant cases (n = 29, median 3.0 × 10
Identifiants
pubmed: 34825717
doi: 10.1002/jmv.27479
pmc: PMC9015476
doi:
Substances chimiques
RNA, Viral
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
1707-1710Subventions
Organisme : Japan Agency for Medical Research and Development
Organisme : JST-CREST
Informations de copyright
© 2021 Wiley Periodicals LLC.
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