The college says the move was made under legislation that allows it to issue such orders where there is evidence to support that patients would otherwise be exposed to risk of harm or injury.
Dorothy Shephard told a news conference in Fredericton that an epidemiological study has found no known food, behaviour or environmental exposure that could have caused the symptoms of a mystery brain syndrome.
The amendments were requested by the Ontario government, which is seeking ways to ease the burden upon the healthcare workforce as part of the provincial re-opening strategy announced on October 25.