The mystery continues as to who may have Covid-19 in Tairāwhiti.
Symptomatic Gisborne residents are being urged to get tested after the detection of the virus in wastewater samples.
Health officials are not aware of any recovered cases in the region.
The latest wastewater sample was taken on Monday after two other positive results last week.
Hauora Tairāwhiti DHB chief executive Jim Green spoke to Corin Dann.
