Effectiveness of Adenovirus Type 5 Vectored and Inactivated COVID-19 Vaccines Against Symptomatic COVID-19, COVID-19 Pneumonia, and Severe COVID-19 Caused by the B.1.617.2 (delta) Variant: Evidence from an Outbreak in Yunnan, China, 2021.
Vaccine(2022)
关键词
COVID-19 vaccine,Effectiveness,Delta variant,China
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