As of Thursday afternoon, there were 31 confirmed cases of mumps in Toronto, nearly as many as the record-breaking 2009, when there were 33 cases over the entire year. Article Continued BelowToronto Public Health says a broader community spread is now occurring outside the west end of downtown. “In recent years, these cycles of increased mumps activity are occurring in a group that we know have increased susceptibility to mumps,” Wilson said. Jason Tetro, a visiting researcher at the University of Guelph and specialist in microbiology, said in some cases mumps symptoms can take up to two weeks to appear. In Toronto, of the 31 cases, seven were fully immunized (have received two doses of mumps containing vaccine) and 24 received either one dose, no doses or unknown doses of the mumps containing vaccine.

Source: thestar March 10, 2017 17:01 UTC