Photo: Alice Angeloni/LDR Microbiologist Siouxsie Wiles expects a research project will find links between untreated sewage discharged into Gisborne rivers in rain events and illness. Dr Wiles, who was named New Zealander of the Year in March for her leadership in the fight against Covid-19, will be researching what she calls "nasty bacteria" in Gisborne's Waimatā River. She is part of the University of Auckland's Let the Rivers Speak team, which has just started a three-year initiative finding new ways to give rivers "voice" and to revitalise rivers as living communities of landscapes, plan...