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Updated January 2022
https://www.publichealth.hscni.net/guidance-schools-healthcare-professionals-businesses-and-other-organisations
https://www.publichealth.hscni.net/covid-19-coronavirus/information-schools-colleges-universities-and-parents/contact-tracing-0
Circular 2021/25: Further guidance for schools on supporting remote learning to provide educational continuity – December 2021