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Live chat replay: microbiologist Keith Warriner on dirty hotels

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Join us Friday at 1:30 p.m. ET for a live chat with University of Guelph microbiologist Keith Warriner who conducted the tests for Marketplace's two-part investigation of hotel cleanliness. 

Microbiologist Keith Warriner was 'alarmed' to find coliform bacteria on hotel ice machines.Microbiologist Keith Warriner was 'alarmed' to find coliform bacteria on hotel ice machines. (CBC)Last week, CBC's Marketplace uncovered antibiotic-resistant bacteria on bathroom sinks, remote controls and bed throws. Warriner's tests found C. difficile, methicillin-resistant staphylococcus aureus (MRSA) and other such bugs in every one of the 54 hotels tested.

This week, the consumer watchdog show turns its attention to hotel ice machines and air vents

Bacterial tests found coliform bacteria in the ice, a possible sign of fecal contamination. "The minimum standard is to have clean ice, and it's not difficult. All you have to do is maintain the machine... and it's obvious they're not doing that," Warriner told Marketplace

And his analysis of air vents in the hotel rooms uncovered mould, rust, dust and pathogens. "It's throwing all these bugs out, and essentially you breathe them in, and once they get down into their lungs, that's where these microbes can take over," said Warriner. 

Keith Warriner will be here to answer your questions about his investigation at 1:30 p.m. ET Friday. 

Tags: Community, Health, Live chat

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