A booster dose enhances immunogenicity of the COVID-19 vaccine candidate ChAdOx1 nCoV-19 in aged mice

Alyssa Silva-Cayetano, William S. Foster, Silvia Innocentin, Sandra Belij‐Rammerstorfer, Alexandra J. Spencer, Oliver T. Burton, Sigrid Fra-Bidó, Jia Le Lee, Nazia Thakur, Carina Conceicao, Daniel Wright, Jordan R. Barrett, Nicola Evans-Bailey, Carly Noble, Dalan Bailey, Adrian Liston, Sarah C. Gilbert, Teresa Lambe, Michelle A. Linterman