1st measles case confirmed in Thunder Bay, Ont., since province-wide outbreak began

Sarah Law · CBC News

· Posted: May 09, 2025 5:53 PM EDT | Last Updated: 7 minutes ago

The Thunder Bay District Health Unit (TBDHU) is reporting a lab-confirmed lawsuit of measles, which marks the archetypal confirmed lawsuit successful northwestern Ontario since the province's measles outbreak began successful the fall.

"The idiosyncratic acquired the corruption done planetary question and is present recovering astatine home," the TBDHU said successful a quality merchandise issued precocious Friday afternoon.

"The nationalist wellness probe is unfolding. At this time, TBDHU is pursuing up straight with known contacts, with a absorption connected those astatine higher risk. The hazard to the wide nationalist is low."

TBDHU is advising radical of the pursuing imaginable for vulnerability to measles connected May 4:

• Air Canada formation AC1195 – Toronto to Thunder Bay: 9:40 p.m. to 11 p.m. ET.
• Thunder Bay International Airport (YQT) terminal gathering 11 p.m. to 1:30 a.m. ET

Anyone who whitethorn person been exposed is asked to cheque their vaccination grounds and show for symptoms until May 25.

Ontario wellness officials said connected Thursday that determination person been 1,440 probable and confirmed cases of the antecedently eradicated illness since the outbreak began successful October.

Northern Ontario's archetypal measles lawsuit successful 30 years was confirmed successful North Bay successful aboriginal March. Since then, cases person accrued successful the northeast but had not dispersed further westbound until this point. 

Generally, radical calved earlier 1970 are considered immune. However, anyone calved successful 1970 oregon aboriginal should cheque their vaccination grounds to marque definite they person received 2 doses of a measles vaccine, the TBDHU said.

Donna Stanley, manager of wellness extortion astatine the Northwestern Health Unit, told CBC News earlier this twelvemonth that those who program to question internationally, be post-secondary schoolhouse oregon enactment successful wellness attraction should see a booster dose.

Those unsure of their vaccination presumption are encouraged to interaction their health-care provider.

Symptoms of measles tin include: 

• Fever, runny nose, cough, reddish eyes.
• Small spots with achromatic centres that look wrong the mouth.
• A reddish blotchy rash appears connected the look past spreads down the assemblage (which usually appears 3 to 7 days aft symptoms begin).

People should show for symptoms adjacent if they are vaccinated against measles, the TBDHU said.

"Measles is simply a highly contagious illness that tin dispersed easy to others done the air. Routine babe and puerility vaccination is usually fixed astatine 12 months and betwixt 4 to six years of age," said Friday's quality release.

"The vaccine is precise effectual against measles, adjacent if the vaccine was received galore years ago. Anyone who has not had 2 doses of a measles vaccine, for example, the measles, mumps and rubella (MMR) vaccine oregon has not had measles successful the past is astatine hazard of infection."

More accusation tin beryllium recovered connected the TBDHU's website.