Two people at the University of Oxford are suspected of having the Omicron version of COVID-19.
A university spokesperson confirmed that the pair are currently in quarantine after testing positive for the virus.
“Individuals are now in isolation as per government guidance and their close contacts have been informed and are in isolation,” he continued.
“The university is working closely with public health officials and following their advice.”
Meanwhile, the first case of the mutant strain has been confirmed in Wales in the Cardiff and Vale University Health Board area.
The Welsh government said the matter pertained to international travel.
Officials say they are “ready to respond rapidly to emerging forms of concern and intensive investigation and strong public health action is being taken to slow any spread”.
Urging the public to follow steps to “keep us safe”, the government has called on people to offer a vaccine.
At the University of Oxford, several changes have already been made to its health guidance in response to the Omicron edition, based on advice from its clinical academics.
“There are no further changes to the university’s health guidance at this stage, or requiring students or staff to take any additional action,” the spokesperson said.
“We are continuing to encourage the entire community to follow all university and government health advice to reduce the risk of COVID-19.”
Kovid infections continue to rise in London, where Omicron has the highest number of cases in the country.
So far 15 people have been infected while the delta variant remains the UK’s dominant mutation.