In this video, Dr. Pavan Jadhav, a Paediatrician at Cloudnine Hospital on SB Road in Pune, explains the concept of herd immunity, also known as community immunity, and its vital role in protecting newborns and immunocompromised individuals. When most children in a community are vaccinated, it indirectly shields those who can't be — such as newborns, children with medical conditions, or the elderly — by reducing the spread of infection. Dr. Jadhav highlights why timely vaccination isn't just personal protection but a robust public health strategy.