RADNOR, Pa., March 19, 2021 (GLOBE NEWSWIRE) -- NeuroRx, Inc. announced the first patient in its P2/3 study of inhaled ZYESAMI™ in the treatment of moderate and severe COVID-19 (AVICOVID-2) was dosed at the University of California Irvine. The trial will be conducted at 10-15 clinical sites in the US.