COVID-19 pandemic.Dr. Mustafa Hirji said there is “room for improvement” with Niagara’s vaccination program when it comes to younger age groups that are still coming down with infections and driving overall cases.“So probably that is going to be the area where we are really going to make or break our potential to avoid a fourth wave and really bring COVID-19 in the community under control is really getting a vaccination rate up in the 18 to 29 age,” Hirji said.