To stay current about the Covid-19 pandemic, people need to process health information when they read the news. Inevitably, that means people will be exposed to health misinformation, too, in the form of false content, often found online, about the illness. Now a study co-authored by MIT scholars contains bad news and good news about Covid-19 misinformation — and a new insight that may help reduce the problem. The bad news is that when people are consuming news on social media, their inclination to share that news with others interferes…