THAYYIL J, MERIN GEORGE A. Short communication Break Through Infection Following Covid 19 Vaccination Among Health Care Workers In South India . Asian J Pharm Clin Res [Internet]. 2021 Oct. 7 [cited 2024 Nov. 23];14(10):25-6. Available from: https://journals.innovareacademics.in/index.php/ajpcr/article/view/42878