There are, however, other reasons why minorities seem to be more at risk of swine flu. Low-income parents have a harder time keeping their sick children home from school. "For some parents in lower-wage jobs, if they don't show up at work, they don't get paid, and people may already be on the economic margins," Barry says. "So parents were desperate to get some of these children back in school." As a result, there were many sick, contagious kids in Boston classrooms this spring. Because of the economic pressures and demographics of the Boston school system, most of them turned...