Number of mumps cases in Toronto has risen to 17.

There are now 17 confirmed cases of mumps linked to bars in the city’s downtown, say Toronto Public Health Officials.

Toronto Public Health said they had been investigating 14 cases of the viral infection, earlier this week.

The lab-confirmed cases involve people between 18 and 35 years of age who frequented west Toronto bars, says spokeswoman Lenore Bromley. The bars may be a contributing factor in the circulation of the viral infection.

The mumps virus is found in saliva and respiratory droplets, and is spread from person to person through coughing, sneezing, and coming into contact with a person’s saliva by sharing drinks or utensils, or by kissing.