<unk>  (HPIVs) are the<unk>  that cause<unk><unk> . HPIVs are a paraphyletic group of four distinct single-stranded RNA<unk>  belonging to the Paramyxoviridae family. These<unk>  are closely associated with both<unk>  and veterinary disease. Virions are approximately 150–250 nm in size and contain negative sense RNA with a genome encompassing about 15,000 nucleotides. Fusion glycoprotein trimer,<unk><unk>  virus 3 (HPIV3). The<unk>  can be detected via cell culture, immunofluorescent microscopy, and PCR. HPIVs remain the second main cause of hospitalisation in children under 5 years of age suffering from a respiratory illness (only Respiratory syncytial virus (RSV) causes more respiratory hospitalisations for this age group).
Human parainfluenza viruses
Influenza A virus
Influenza B virus
Influenza D virus
Respiratory syncytial virus
Rhinovirus
Novel coronavirus
Chinese coronavirus