Wastewater testing confirms more weak positive results for Covid-19 have been detected in Porirua and Karori.
The Ministry of Health says it maintains that the weak positive results are likely due to recently recovered cases continuing to shed the virus.
Two earlier samples from Moa Point returned weak positive results, but further samples tested from Moa Point and Hutt Valley did not detect any virus fragments across May 15, 16 and 17.
The samples from Porirua and Karori that returned a weak positive result were gathered on May 16, while samples from May 15 and 17 returned negative results – so Covid-19 virus fragments were not detected on those days.