- Tytuł:
- Effectiveness of BBV152/Covaxin and AZD1222/Covishield vaccines against severe COVID-19 and B.1.617.2/Delta variant in India, 2021: a multi-centric hospital-based case-control study
- Autorzy:
- Źródło:
- In International Journal of Infectious Diseases September 2022 122:693-702
Czasopismo naukowe