A housing estate has been struck by an outbreak of residents suffering from sickness and diarrhoea.
They fear the bug which has affected dozens could be linked to ongoing work cleaning out water pipes.
But suppliers United Utilities say there's 'no reason to believe' it's connected to the water supply, reports the Manchester Evening News.
But residents on the Ladyhouse estate in Milnrow in Rochdale, Greater Manchester - home to about 550 households - are avoiding tap water and need to keep the bathroom nearby.
Anyone suffering from an illness has been advised to see their GP.
Jed Williams runs a WhatsApp group for the estate's neighbourhood watch scheme.
He says dozens of people in the group have complained of falling ill over the weekend.
He said: "Someone posted in the WhatsApp group last night asking if anyone had been ill and my phone's been pinging ever since.
"There must be a hundred messages from people.
"There's babies, old people, dogs even.
"My wife's been ill since Saturday morning.
"I took my dogs out for a walk on Saturday and when we got back my German shepherd took a big drink of water then was sick all over the floor.
"The concern is that there are old people or babies that could get seriously ill."
United Utilities began work to clean out water pipes on the estate about three weeks ago.
Driving instructor Jed, 54, says people are concerned the water supply has inadvertently become contaminated as a result.
He said: "Everybody's getting ill from something and the water is the only common factor. It's not like we've all had the same dodgy curry.
"We got as leaflet through the door about a month ago saying the water could be discoloured while the work was going on, but it's been running clear.
"But I'm going to be getting some bottled water on the way home from work - you just can't take the chance."
A spokesperson for United Utilities said water quality officers had taken samples from across the area and found nothing of concern.
In a statement the firm added: “We have been in the area carrying out mains cleaning.
"Mains cleaning is carried out to remove naturally occurring deposits which have built up over time.
"While carrying out the work, occasionally it can cause discolouration which is short-lived.
"We have no reason to believe the water supply is causing the illness reported. We would advise anyone feeling unwell speak to their GP about any illness they may be experiencing."
