Since pupils and staff returned to school, at least 42 schools across the city and the rest of the county have been affected by positive COVID-19 tests.
Here all the schools that we know of that have been forced to send pupils home or close year groups because of the virus.
21. Sheffield and South Yorkshire schools hit by coronavirus
Barnsley College Photo: JPImedia
22. Sheffield and South Yorkshire schools hit by coronavirus
St Helen's Primary Academy. Photo: JPIMedia
23. Sheffield and South Yorkshire schools hit by coronavirus
Doncaster Deaf Trust Photo: JPImedia
24. Sheffield and South Yorkshire schools hit by coronavirus
Watercliffe Meadow Photo: JPIMedia
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