Call for mandatory childhood vaccination

Childhood vaccination should be made mandatory to prevent parents’ bad choices putting other vulnerable children at risk, an expert has argued.

"When parents choose not to vaccinate, they are also making a choice for those with whom their children come in contact," said Dr Paul Offit, chief of infectious diseases at the Children's Hospital of Philadelphia, US.

Children at risk included those too young to be vaccinated and those receiving chemotherapy or immunotherapy drugs.

"These people depend on