Pfizer covid vaccine, is it the end of covid? In Hindi (कोविड टीका क्या हैं) Pfizer covid vaccine, is it the end of covid? In Hindi (कोविड टीका क्या हैं)

Does the covid vaccine by Pfizer really work? Thoughts by a pediatrician from India, please note that this video is in Hindi. https://youtu.be/LjQuXGkqlh0 Charak Clinics