Human Parainfluenza Virus 1

**Semantic type:** Virus

**Definition:** A single-stranded, negative-sense RNA virus of the paramyxovirus group that causes croup in children.

**Synonyms:** - HA2 - HPIV-1 - HPIV-1 - HUMAN PARAINFLUENZA VIRUS 1 - Hemadsorption Type 2 Virus - Human Parainfluenza Virus Type 1 - Human Respirovirus 1