Article

Protection conferred by Delta and BA.1/BA.2 infection against BA.4/BA.5 infection and hospitalization: A Retrospective Cohort Study

2022-11-14

Abstract excerpt

<h4>Background</h4> SARS-CoV-2 immunity has declined with subsequent waves and accrual of viral mutations. In vitro studies raise concern for immune escape by BA.4/BA.5, and a study in Qatar showed moderate protection, but these findings have yet to be reproduced. <h4>Methods</h4> This retrospective cohort study included individuals tested for COVID-19 by PCR during Delta or BA.1/BA.2 and retested during BA.4/BA.5...

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Literature Corpus work: a22cbf28-bf12-50cc-b4ae-e0df7b91f6a6
DOI: 10.1101/2022.11.14.22282310

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