Nearly 95% protection shown in Moderna Covid-19 vaccine

A new Covid-19 vaccine, from the US company Moderna, is nearly 95% effective, early data show. The trial involved 30,000 people in the US, with half being given two doses of the vaccine, four weeks apart.

"These effects are what we would expect with a vaccine that is working and inducing a good immune response," said Prof Peter Openshaw, from Imperial College London.