Fayraska Parainfluenza waa nooc ka mid ah fayras ka tirsan qoyska Paramyxoviridae wuxuuna u keeni karaa infekshannada neef-mareenka ee dadka iyo xayawaanka. Horgalayaasha "para-" macneheedu waa "dhinac" ama "u dhow," iyo hargabku waxa uu tilmaamayaa calaamadaha hargabka u eg ee uu fayraskani keeni karo, inkasta oo aanu xidhiidh la lahayn fayraska hargabka. Waxaa jira afar nooc oo fayraska parainfluenza ah, waana sababta caadiga ah ee croup, cudur neefsiga oo saameeya marinnada neef-mareenka oo keena qufac, xabeeb, iyo neefsashada oo ku adkaata. Marka laga reebo croup, fayraska parainfluenza waxa kale oo uu keeni karaa cudurrada kale ee neef-mareenka sida boronkiitada iyo oof-wareen.