Rhinovirus characteristics associated with viremia in childhood asthma

Rhinovirus characteristics associated with viremia in childhood asthma

Although rhinoviruses play a major role in exacerbations of childhood asthma, the presence of rhinovirus (RV) RNA in plasma, referred to as viremia, has been investigated in a few studies. The aim of the study was to investigate the presence of rhinovirus viremia at the time of asthma exacerbation a...

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Bibliographic Details
Published in:Journal of medical virology Vol. 96; no. 8; pp. e29804 - n/a
Main Authors: Lejeune, Stéphanie B., Deschildre, Antoine, Morel, Constance L., Béghin, Laurent R., Drumez, Elodie, Pichavant, Muriel, Gosset, Philippe, Engelmann, Ilka
Format: Journal Article
Language:English
Published: United States Wiley Subscription Services, Inc 01-08-2024
Subjects:
Asthma
Asthma - virology
Child, Preschool
Children
Childrens health
Enteroviruses
Female
Humans
Infant
Male
molecular typing
Pediatrics
Picornaviridae Infections - virology
Plasma
Plasma - virology
Polymerase chain reaction
preschool children
Prospective Studies
Reverse Transcriptase Polymerase Chain Reaction
Rhinovirus
Rhinovirus - classification
Rhinovirus - genetics
Rhinovirus - isolation & purification
RNA, Viral - genetics
Viremia
Viremia - virology
preschool children
asthma
rhinovirus
viremia
molecular typing
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Summary:Although rhinoviruses play a major role in exacerbations of childhood asthma, the presence of rhinovirus (RV) RNA in plasma, referred to as viremia, has been investigated in a few studies. The aim of the study was to investigate the presence of rhinovirus viremia at the time of asthma exacerbation and to describe the molecular characteristics of rhinoviruses associated with viremia. We conducted an observational, prospective, multicenter study in eight pediatric hospitals (VIRASTHMA2). Preschool‐aged recurrent wheezers (1–5 years) hospitalized for a severe exacerbation were included. Reverse‐transcription polymerase chain reaction (RT‐PCR) and molecular typing for RV/enteroviruses (EV) were performed on nasal swabs and plasma. Plasma specimens were available for 105 children with positive RT‐PCR for RV/EV in respiratory specimens. Thirty‐six (34.3%) had positive viremia. In plasma, 28 (82.4%) of the typable specimens were RV‐C, five (14.7%) were EV‐D68, and one was RV‐A (2.9%). In all cases, the RV/EV type was identical in the plasma and respiratory specimens. In conclusion, RV/EV viremia is frequent in severe exacerbations of preschool recurrent wheezers, particularly in RV‐C infections.
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ISSN:0146-6615
1096-9071
1096-9071
DOI:10.1002/jmv.29804