The pneumococcal conjugate vaccine (PCV) specifically targets Streptococcus pneumoniae, a leading cause of pneumonia and meningitis in children. By inducing immunity against pneumococcal bacteria, PCV effectively reduces the incidence and severity of these infections, which are major contributors to child morbidity and mortality. Its introduction in India has significantly decreased childhood pneumonia and invasive pneumococcal diseases, thereby improving survival rates and reducing healthcare burden. This makes PCV a critical vaccine in the prevention of serious bacterial infections in pediatric populations.

Reference: Nelson Textbook of Pediatrics, Kliegman RM, 21st Edition.