Related video above: Dr. Fauci says vaccines may bring normality by end of 2021Dr. Ashish Jha started 2020 thousands of miles from home, taking a sabbatical in Europe from his academic post at Harvard. Then the coronavirus pandemic arrived in the U.S.Jha, an expert on pandemic preparedness, returned to Massachusetts, and his blunt talk on the unfolding disaster was soon hard to miss on national