Naik, Bijaya Nanda, Sanjay Pandey, Chandra Mani Singh, Alok Ranjan, Manisha Verma, and Ebbie Thomas. “Does BCG Vaccine Prevent Contract and Severity of COVID-19 Infection in India? A Situational Analysis”. Indian Journal of Community Health 33, no. 2 (June 30, 2021): 304–308. Accessed April 25, 2024. https://iapsmupuk.org/journal/index.php/IJCH/article/view/1918.