The principal of St Dominic's Catholic College is strongly urging people not to lay blame on those who are sick after a student at the school tested positive for Covid-19.
The Ministry of Health has discovered that someone within the Mt Roskill Evangelical Fellowship Church sub-cluster visited a bereaved family, while waiting for the results of a coronavirus test.
That resulted in 22 people picking up the virus and more than 150 close contacts of the family are now in self-isolation.
St Dominic's Catholic College principal Anna Swann told Morning Report she's worried about blame being apportioned when it is not really fair.
"We're a school that's a special character school and we believe in being kind and being respectful, caring," she said.
"So it goes against everything that we certainly stand for. It's just not on. It's nobody's fault this, we're talking about health issues here. It's nothing to blame for."
Swann said all students at the school have been asked to be testing and "a few" have been identified as close contacts and asked to self-isolate.
She said the school is following advice from the Ministry of Health.