Research shows an increase in sick days taken, with manual workers taking more than non-manual. Photo / Alex BurtonResearch shows an increase in sick days taken, with manual workers taking more than non-manual. Photo / Alex Burton

Covid-19 wastewater data shows infections at a six-month high nationwide. Photo / NZMECovid-19 wastewater data shows infections at a six-month high nationwide. Photo / NZME