The Rodillian Academy in Wakefield confirmed that a Year 11 student had tested positive for the virus on Monday.
The school informed all Year 11 students to stay home as a 'precautionary measure' on Tuesday following the news in a letter sent home to parents.
However, following consultation with Public Health England, the school has now allowed the majority of Year 11 to return to school on Wednesday (September 16) - with affected students asked to stay home and self-isolate in line with track and trace guidance.
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Andy Goulty, CEO of The Rodillian Multi Academy Trust, said in a statement provided to the Yorkshire Evening Post that the school 'continue to be vigilant'.
The statement read: "Year 11 were asked to stay at home as a precautionary measure after a confirmed positive Covid test, and on the advice of Leeds LA.
"Public Health England were consulted the following day and following their advice a number of students have been asked to self-isolate, in line with track and trace guidance.
"The rest of Year 11 have returned to school today.
"We continue to be vigilant and parents of all students in Rodillian are being kept informed of developments."
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