Title: Impact of Delta Variant and Vaccination on SARS-CoV-2 Secondary Attack Rate Among Household Close Contacts
SUMMARY: Background: Impact of the Delta variant and vaccination on SARS-CoV-2 transmission remains unclear. In Singapore, quarantine of all close contacts, including entry and exit PCR testing, provided the opportunity to determine risk of infection by the Delta variant compared to other variants,...
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Main Authors: | , , , , , , , , , , , , , , , , , , |
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Format: | article |
Language: | EN |
Published: |
Elsevier
2021
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Subjects: | |
Online Access: | https://doaj.org/article/b0b4cfbeebbb47139c5046aa29f77d76 |
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