A teen in Canada may be the first person to catch an H5 bird flu virus within the country. Health officials are now working to confirm the diagnosis.

A teenager is in critical condition in a British Columbia children’s hospital, sick with Canada’s first presumptive human case of avian influenza. “This was a healthy teenager prior to this, so no underlying conditions,” said provincial health officer Bonnie Henry in a news conference on Tuesday.

"We are conducting a thorough investigation to fully understand the source of exposure here in B.C.," British Columbia Health Officer Bonnie Henry said in a statement.