Commentary People look at the steep rise in COVID infections and worry—some about their health but still more about their livelihoods, for some in authority have again begun to talk about lockdowns and quarantines. There is, of course, always a chance that panic will spread in Washington or some state capital, but the data to date could not justify such levels of fear, much less such extreme measures to restrict economic activity in the coming weeks and months. Today’s fears—about personal health and the economy—have four roots. First is the stark rise in infections, up 480 percent since last June nationwide to 66,606 a day. Second is the disappointment on the national inoculation rate. Third is the news that some who have received inoculations have nonetheless tested positive for COVID, what the media termed as “breakthrough” cases. And finally, the latest concern comes from a study showing that those vaccinated …