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Study Shows Link Between a Virus and Croup

A New Virus Called NL63 Could Be a Cause of Croup and Other Coughs

A Pattern Established

Previous studies have reported certain trends in croup, including:

  • Boys are more susceptible
  • Occurs most frequently in the second year of life
  • Usually occurs in winter and early spring

Each of these factors is matched by patterns of the new virus' occurrence.

With an overall incidence of 5%, it is the third most frequent cause in this group of patients, they write.

"In conclusion, HCoV-NL63 infections occur frequently in young children with LRTI [lower respiratory tract infection] and show a strong association with croup, suggesting a causal relationship," van der Hoek writes.

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