The lab which opened just over a month ago is designed to hold the world's most deadly microbes. The Globe and Mail says the leak occurred two weeks ago when more than 2,000 litres of effluent from the lab's waste-water system was accidentally released into the city's sewer system. The lab was supposed to have been stocked with vials of Ebola and Lassa viruses. But officials say that won't be happening for at least a month, because of the spill.
Federal officials say the release poses no threat to human health.