The Health Unit is raising a red flag about the number of flu cases in the region after the death of one person. Medical Officer of Health Dr. David Williams, says the death took place in the last week and involved a person under the age of 65 who developed the symptoms. He says that Thunder Bay leads the province with the highest number of emergency room visits for patients experiencing symptoms of the flu. Williams adds there have been 35 confirmed cases of the flu and that several have been severe with some requiring hospitalization.