India, March 5 -- Quebec Public Health Director Dr. Luc Boileau confirmed 10 cases of measles recently, involving mostly children. Similar cases were reported in Ontario, Saskatchewan and British Columbia.

The director said that out of the total cases, only a few were related to international travel, confirming the doubts that the cases were likely caused by community transmission. "That's what worries us," Boileau added.

"Measles is more contagious than COVID. The majority of people who are in contact with measles and are not vaccinated will contract the virus," Boileau said in a press conference. "The numbers can go up fast, very fast."

The measles virus can remain active for up to two hours and has a long incubation period of 10 to 14...