Wrth baratoi, dylai ysgolion weithio gyda'u hawdurdodau lleol a chynghorwyr iechyd y cyhoedd i benderfynu ar y mesurau y gall fod angen iddynt eu rhoi ar waith, yn seiliedig ar eu hamgylchiadau lleol.
In preparation, schools should work with their local authorities and public health advisors to determine the measures they may need to put in place, based on their local circumstances.