Hundreds of students at the University of Windsor are expected to “get swabbed” on Tuesday. It’s part of an effort to help find stem cell donors for the nearly 1,000 Canadians, mainly cancer patients, who are likely to die without transplants from genetically similar donors. More than 20 universities in Canada are participating in One Match’s Get Swabbed! Challenge this year, up from 15 last year. It doesn’t take long, but students must be willing to donate their cells if a match is found. Last year more than 5,700 students participated.