Concern from an infectious diseases expert at the latest community cases of Covid 19 in Auckland.

Another student at Auckland's Papatoetoe High School has tested positive for the virus - and two of her siblings tested positive last evening.

Everyone in the school community is being asked to stay home, while students and staff are tested again.

Otago University's David Murdoch told Kate Hawkesby the latest cases appear to be within the "ring of containment", but there's still a chance the virus has spread further.

He says the connection is important, and contact tracing should get on top of it, but it's concerning we're still getting community cases.

Anyone who visited Kmart Botany on Friday and Saturday between 4 and 10pm is being asked to self-isolate immediately.

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