Comprehensive Overview of Human Metapneumovirus (hMPV) Human metapneumovirus is a non-segmented, enveloped, negative-stranded RNA virus classified under the family Paramyxoviridae, subfamily Pneumovirinae. Ever since its discovery in 2001 in the Netherlands, hMPV has become recognized as one of the major causative agents in acute respiratory tract infections worldwide among young children, the elderly, and people […]