How common are reinfections? The UK has recently started publishing data on reinfections on its COVID dashboard.
It classifies a reinfection as someone receiving a new positive COVID test result more than 90 days after their last infection.
Up to February 6 2022, there had been over 14.5 million primary infections and around 620,000 reinfections in England – so one reinfection for every 24 primary infections.
Over 50% of all reinfections have been reported in since December 1 2021, suggesting again that the risk of reinfection has increased substantially with omicron.