A new COVID-19 Omicron subvariant has been detected in New Zealand in a person returning from overseas, Newshub reveals. The Ministry of Health says the arrival of the new Omicron variant, BA.4, is not unexpected. “At this stage, the public health settings already in place to manage other Omicron variants are assessed to be appropriate for managing BA.4 and no changes are required,” said MOH in a press release.