Every childhood vaccine may go into a single shot.

A technology that could eventually see every childhood vaccine delivered in a single injection has been developed by US researchers.

A team at Massachusetts Institute of Technology has designed a new type of micro-particle that could combine everything into a single jab.

The one-shot solution stores the vaccine in microscopic capsules that release the initial dose and then boosters at specific times.

The researchers say the technology could help patients around the world.