Black market is not the only place you can get bad weed from.
OTTAWA -- Hundreds of medical marijuana users have been told the pot they thought could help them might harm them because it's contaminated with bacteria.
Health Canada reports that Tilray, is telling clients to stop using its Sativa House Blend, Hybrid House Blend and Indica House Blend.
The pot was contaminated with enterobacter, which is not associated with an acute health risk, said Joshua Eades, Tilray's chief science officer.
He said the company doesn't know where the bacteria originated.
"We are undergoing a top-to-bottom, rigorous review of our sanitation practices and procedures," he said. "And we'll be doing a root-cause analysis to understand what caused these results."