The BA.2.75 subvariant, is a recently identified second generation subvariant of BA.2, the dominant variant currently circulating in New Zealand.
Early evidence from overseas suggests BA.2.75 is slightly more transmissible but unlikely to cause severe illness as the previous Delta variant.
PM News reports Dr Helen Petousis-Harris says people need to be sensible and not rely on vaccines doing all the work.
“You have to also help it out a bit. People who have been vaccinated and had a booster and had an infection have reasonable protection against severe disease.