Year One pupils at the school have been sent home and are now self-isolating.
The school breaks up for half term today, Friday, with staff and pupils set to return as normal after the break.
A statement from Gloucestershire County Council said: “Year One Bubble closed today due to staff member testing positive for Covid-19.
“Advice from public health taken and no further action needed. Staff and pupils will return as normal after the half-term break.”