Definition

Noun: A virus that causes upper respiratory infections, such as the common cold and bronchiolitis. It most frequently infects children.

Usage

The term "parainfluenza virus" is used specifically in medical and biological contexts to refer to a group of related viruses responsible for respiratory illnesses. It is a countable noun (e.g., a parainfluenza virus, parainfluenza viruses).

Examples

• The child was hospitalized with a severe infection from a parainfluenza virus.
• Parainfluenza viruses are a common cause of croup in young children.
• Laboratory tests confirmed the presence of parainfluenza virus type 3.

Advanced Usage

• The term is often specified by type (e.g., human parainfluenza virus 1, HPIV-2). These types are associated with different clinical syndromes, such as croup (HPIV-1 and HPIV-2) or bronchiolitis and pneumonia (HPIV-3).

Variants and Related Words

• HPIV: An acronym for Human Parainfluenza Virus.
• Paramyxovirus: The viral family to which parainfluenza viruses belong.

Synonyms

• Human parainfluenza virus (HPIV): The full, more precise term.
• Respiratory virus: A broader, less specific term for viruses causing respiratory infections.

Noun

1. a virus that causes upper respiratory infection (including the common cold and bronchiolitis); most often in children