Effectiveness of COVID-19 Vaccines Over Time Prior to Omicron Emergence in Ontario, Canada: Test-Negative Design Study

Abstract Background Waning protection from 2 doses of coronavirus disease 2019 (COVID-19) vaccines led to third dose availability in multiple countries even before the emergence of the Omicron variant. Methods We used the test-negative study design to estimate vaccine effectiveness (VE) against any...

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Veröffentlicht in:	Open Forum Infectious Diseases 2022-09, Vol.9 (9), p.ofac449-ofac449
Hauptverfasser:	Chung, Hannah, Austin, Peter C, Brown, Kevin A, Buchan, Sarah A, Fell, Deshayne B, Fong, Cindy, Gubbay, Jonathan B, Nasreen, Sharifa, Schwartz, Kevin L, Sundaram, Maria E, Tadrous, Mina, Wilson, Kumanan, Wilson, Sarah E, Kwong, Jeffrey C
Format:	Artikel
Sprache:	eng
Schlagworte:	Coronaviruses Major Medical research Medicine, Experimental RNA Severe acute respiratory syndrome Vaccines
Online-Zugang:	Volltext
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