Prime Minister Jacinda Ardern looks on while Stuart Nash speaks during a press conference at Parliament in Wellington, New Zealand on March 16, 2022. New Zealand's border will open to fully vaccinated tourists from Australia from 11:59 pm on April 12. Photo: VCG

New Zealand reported its first case of Omicron BA.5 variant at the border amid 12,392 community cases during the weekend, said the Ministry of Health in a statement on Sunday.

A person who has traveled from South Africa to New Zealand has been confirmed as having the BA.5 variant of Omicron. This is the first known detection of the variant in New Zealand, said the ministry.

According to the ministry, this follows the detection of BA.4 on May 1, also in a person who had traveled from South Africa. It can take weeks or months to assess the severity of each new variant or sub-variant, so the Ministry of Health will continue to monitor the emerging evidence closely, it said.

Microbiologist Associate Professor Siouxsie Wiles from the University of Auckland was worried about "all versions of Omicron around" and "variants of the virus we don't yet know about but are almost certainly out there evolving away."

"One big problem with the 'getting back to normal' phase that most countries have adopted is putting immunocompromised people at high risk of infection. While this is dangerous for their health, it can also be really bad for everyone else," wrote Wiles to local media The Spinoff.

New Zealand is currently under the orange settings of the COVID-19 Protection Framework, where there is no limit for gatherings.

University of Otago epidemiologist Professor Michael Baker told local media Newshub that most infectious diseases don't decline in severity over time.

Xinhua