Children in England and Wales are due to go back to the classroom in September. In Scotland, where pupils have already returned, 21 staff at a Dundee school have been linked to a cluster of coronavirus cases - raising concerns about the safety of teachers.
Are teachers at higher risk?
While children are extremely unlikely to be made ill by coronavirus, adult staff are at greater risk.
A Public Health England study, carried out when many schools had not yet re-opened, suggested staff were more likely to catch the virus from each other, or from elsewhere, than they were from pupils.
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