Herd Immunity
Herd immunity refers to the protection of a population from infectious diseases. It occurs when a significant portion of the community becomes immune, reducing disease spread. This can be achieved through vaccination or previous infections. Herd immunity is crucial for safeguarding vulnerable individuals. It plays a vital role in public health policy and disease prevention strategies. Understanding it helps in managing outbreaks effectively.
As India debates the rollout of a school-based HPV vaccination programme, fresh evidence from Sweden adds weight to the public health case. New data shows that high vaccination...
January 13, 2026
