Feb 09, 2015
By Michael Kramer
Tests show that no link exists between four recent cases of measles in Toronto – and a big outbreak that has been linked to the Disneyland theme parks in California.
The Toronto Public Health Department says testing of the viruses from four of the city’s six cases – shows they are from a strain called “D4.”
The Disneyland outbreak, which has caused upwards of 114 cases in at least seven U.S. states – is caused by viruses from the “B3” strain.
Associate Medical Officer of Health, Doctor Vinita Dubey, says results are still pending on the virus type – for the two most recent measles cases in Toronto.
At this point, the city has seen six cases.
Dubey says the “D4” strain of measles circulates in a number of different parts of the world.
She says Toronto Public Health’s current hypothesis is that someone brought this strain to Toronto – and these four cases are all part of a chain of transmission from that person.