Human parainfluenza viruses (HPIV) can infect the respiratory system and cause cold-like symptoms. HPIV‘s respiratory symptoms are typically mild but can cause bronchitis, croup, or pneumonia. HPIV, or parainfluenza, is part of a family of viruses known as Paramyxoviridae, which can cause upper and lower respiratory tract infections. They …
https://resources.healthgrades.com/right-care/infections-and-contagious-diseases/parainfluenza