The Covid-19 pandemic, like many other health crises, has had unequal effects on the U.S. population, with communities of color often hit the hardest. A new study co-authored by an MIT professor identifies a related challenge: Different social groups have different reactions to the fact that Covid-19 has generated those health inequities. More specifically, the study, based on a multilayered survey of U.S. residents, finds a divergence among racial groups when people are informed about the varying effects of the pandemic. Upon learning more about the social distribution of Covid-19,…