Earlier today ESR reported there had been a positive test result detected from a wastewater sample in New Plymouth. A follow-up sample, taken yesterday, returned a second positive result this evening.
Based on previous incidences, it is most likely that the two positive wastewater results are due to recently recovered cases continuing to shed the virus.
The Ministry of Health is investigating whether any recovered cases who live in the New Plymouth area have recently left a managed isolation facility.
Additionally, it is also possibe that other recently recovered cases from elsewhere in the country could have travelled to New Plymouth.
ESR consider a single recovered person shedding the virus may be detected in wastewater.
While the mariners aboard the Playa Zahara and Viking Bay vessels recently docked at Port Taranaki, in New Plymouth, the dates of their brief visits, and the activity of the crew, do not appear to be a factor in these wastewater detections.
Additional testing is being carried out for a small number of port workers and nurses, who have been in possible contact with the mariners. The nurses have previously been tested for COVID-19 and returned negative test results.
As an additional precautionary measure, and to help rule out possible undetected COVID-19 infection, the Ministry is encouraging anyone with symptoms, especially if they are in the New Plymouth area, to get tested. Additional testing capacity is being stood up in New Plymouth to support potential demand.