Figure 1From: An outbreak of norovirus gastroenteritis associated with a secondary water supply system in a factory in south China Schematic of environment around underground reservoirs in the factory having gastroenteritis outbreak. SCC1: the first suspected source of contamination. SCC2: the second suspected source of contamination. SCC3: the third suspected source of contamination. MSWS: Municipal supply water system. Building A1, A3, A11, A12, A15, A21, A22, A23 provide DDWD. Building A2, A16, A17, A19 provide bottled water.Back to article page