Human Metapneumovirus (HMPV) is a virus that lives in the respiratory tract. This virus was first discovered in 2001, and has since become one of the causes of upper respiratory tract infections (URTIs). HMPV is very similar to the RSV (Respiratory Syncytial Virus) virus, which often infects children and can cause lung disease. ... the elderly, and those with lung or heart disease, are more susceptible to more serious infections.[...] The following are symptoms commonly experienced by HMPV sufferers: Dry or phlegmy cough Cough is the main symptom of HMPV, it can be a dry or phlegmy cough. This condition...