Molecular Epidemiology of Rhinovirus Detections in Young Children

Author:

Howard Leigh M.12,Johnson Monika3,Gil Ana I.4,Griffin Marie R.5,Edwards Kathryn M.12,Lanata Claudio F.14,Williams John V.3,Grijalva Carlos G.5,Griffin Marie R.,Williams John V.,Howard Leigh M.,Edwards Kathryn M.,Budge Philip J.,Zhu Yuwei,Johnson Monika,Grijalva Carlos G.,Vidal Jorge E.,Klugman Keith P.,Verastegui Hector,Hartinger Stella M.,Gil Ana I.,Lanata Claudio F.,

Affiliation:

1. Division of Infectious Diseases, Department of Pediatrics

2. Vanderbilt Vaccine Research Program, Nashville, Tennessee

3. Department of Pediatrics, University of Pittsburgh School of Medicine, Children's Hospital of Pittsburgh of University of Pittsburgh Medical Center, Pennsylvania

4. Instituto de Investigacion Nutricional, Lima, Peru

5. Department of Health Policy, Vanderbilt University, Tennessee

Abstract

Abstract Background.  Human rhinoviruses (HRVs) are frequently detected in children with acute respiratory illnesses (ARIs) but also in asymptomatic children. We compared features of ARI with HRV species (A, B, C) and determined genotypes associated with repeated HRV detections within individuals. Methods.  We used clinical data and respiratory samples obtained from children <3 years old during weekly active household-based surveillance. A random subset of samples in which HRV was detected from individuals during both ARI and an asymptomatic period within 120 days of the ARI were genotyped. Features of ARI were compared among HRV species. Concordance of genotype among repeated HRV detections within individuals was assessed. Results.  Among 207 ARI samples sequenced, HRV-A, HRV-B, and HRV-C were detected in 104 (50%), 20 (10%), and 83 (40%), respectively. Presence of fever, decreased appetite, and malaise were significantly higher in children with HRV-B. When codetections with other viruses were excluded (n = 155), these trends persisted, but some did not reach statistical significance. When 58 paired sequential HRV detections during asymptomatic and ARI episodes were sequenced, only 9 (16%) were identical genotypes of HRV. Conclusions.  Clinical features may differ among HRV species. Repeated HRV detections in young children frequently represented acquisition of new HRV strains.

Funder

Vanderbilt University Clinical and Translational Science Award

National Institutes of Health

Pfizer

Thrasher Research Fund

Early Career Award

Publisher

Oxford University Press (OUP)

Subject

Infectious Diseases,Oncology

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