Staff and pupils at a Wigan school will be isolated for a fortnight after returning from a trip to Italy.
The country has been placed under a national lockdown in a battle against coronavirus.
St Peter's Catholic High School in Orrell took pupils to Rome on Saturday, despite Italy having one of the highest number of confirmed COVID-19 cases.
They are due to return today and the school has written to parents to say those who went on the trip will be placed into isolation upon returning.
In the letter, they said they had allowed the trip to go ahead following 'careful consideration and guidance from relevant authorities'.
It is known how many pupils will be affected, but parents have been told that four members of staff will not be in school for 14 days.
The letter, which has been seen by the Manchester Evening News, read: "Thank you for your patience to those who have contacted school recently to ask about the measures being put in place as a school for pupils returning from Rome.
"We have been liaising frequently with Public Health England and the Department for Education up until late last evening when the advice changed."
Pupils who did not go on the trip, but have friends that did, are being urged to avoid contact with them outside of school over the two-week period.
The pick-up point for parents collecting children from the trip has also been moved from the school grounds.
School bosses have pledged to provide further updates to parents in due course.
They added: "I hope you will appreciate that we have had to wait until now before providing any formal responses as the situation involving Coronavirus is changing daily both in the UK and abroad.
"Please be reassured that as soon as receive any further updates regarding Coronavirus we will let you know at the earliest opportunity."
The school has been approached for comment.
The whole of Italy was put on lockdown yesterday as the country's coronavirus death toll rose to 463.
Citizens have been urged not to leave their homes, except to go to work and in emergencies.
All public gatherings have been banned in the Mediterranean country and all sports events cancelled.
While public transport will remain operational, schools and universities across the country will close until April 3.
