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Which virus is the leading cause of the croup syndrome in young children?

asked Oct 17, 2016 in Otolaryngology by Rajesh Bahara
Which virus is the leading cause of the croup syndrome in young children and, when infecting mammalian cells in culture, will hemabsorb red blood cells?

a. Group B coxsackievirus
b. Rotavirus
c. Parainfluenza virus
d. Adenovirus
e. Rhinovirus

1 Answer

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Best answer
c. Parainfluenza virus
The answer is c.

(Levinson, pp 230–231.) Parainfluenza viruses are important causes of respiratory diseases in infants and young children. The spectrum of disease caused by these viruses ranges from a mild febrile cold to croup, bronchiolitis, and pneumonia. Parainfluenza viruses contain RNA in a nucleocapsid encased within an envelope derived from the host cell membrane. Infected mammalian cell culture will hemabsorb red blood cells owing to viral hemagglutinin on the surface of the cell.
answered Oct 17, 2016 by Rajesh Bahara

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