In some locations, it is hard to get a COVID-19 test. In others, supplies are an issue. And yet in others, it takes so long to get results, by the time they’re available, the person who was tested may have already spread the illness. To try to better understand what is going on with testing and why, NSPR’s Marc Albert spoke with Elisabeth Rosenthal, the editor-in-chief of Kaiser Health News, a nonprofit news service covering health care policy.