Extended water stagnation in buildings during the COVID-19 pandemic increases the risks posed by opportunistic pathogens
The regrowth and subsequent exposure of opportunistic pathogens (OPs) whilst reopening buildings that have been locked down due to the stay-at-home restrictions to limit the spread of COVID-19, is a public health concern.To better understand such microbiological risks due to lowered occupancy and water demand in buildings, first and post-flush wate