"Household contacts who test positive will need to begin a new 7 days isolation from that point.
"Anyone isolating who still has symptoms after 7 days should stay home until 24 hours after symptoms resolve," it said.
It said the Ministry of Health's daily reported cases today in Canterbury may differ from those reported at a DHB or local public health unit level.
"This is because of different reporting cut-off times and the assignment of cases between regions, for example when a case is tested outside their usual region of residence.
"These numbers also rely on people registering their positive unsupervised RAT test results."