The city's downtown health board, however, didn't specify which bars were among the five. Montreal public health has been in touch with the bars' owners to let them know. .
"We really felt it was important to put out a strong message today to the population of Montreal, regarding what we've seen in bars over the last few days," said Dr.
David Kaiser of Montreal public health.
Kaiser said officials are expecting the number of cases linked to bars to grow in the coming days.