Niamh Griffin: Omicron is a 'stealthy immune invader'

The summer of disruptions and calls for the return of masks are explained by the increasing vigour of new variants — and the growing threat of long Covid 

New research shows people infected with Omicron are less protected from repeat infections than they would have been from previous Covid variants. Stock picture

This summer was meant to be a time of freedoms and relaxation, our first real summer in three years but instead we are facing cancelled flights, gigs, and family outings — all linked to Covid infections.

One top medic has described Omicron as a “stealthy immune evader” and some EU countries are considering the reintroduction of mask-wearing.