However, the rest of the school is open as usual until Friday when further measures to control the spread of coronavirus come into force.
Executive headteacher Neil Rodgers, in a letter to parents, said: “With the exception of year 12, who have been learning from home, we have managed to continue the education for all our students as usual. We expect to do likewise for the rest of the week.
“Although we do have a number of staff and students self-isolating, I need to reiterate that nobody in either of those groups has tested positive for the virus.
“Absent students and colleagues are taking the advised precautions due to having symptoms themselves, living with someone displaying the symptoms or being in an identified high risk group.
“As the coronavirus pandemic continues, the government’s attempts to try and delay its spread mean increased restrictions are put in place, such as social distancing.”
Writing before the announcement that schools across England will close from Friday, he added: “We will continue to run the school as normal for all year groups, except year 12 who should continue to learn from home for the rest of the week.
“Thank you for your understanding and ongoing support – it’s much appreciated.”
A further update is expected to be sent out to parents later today.