Clinical correlation of influenza and respiratory syncytial virus load measured by digital PCR.

Acute respiratory tract infections are a major cause of respiratory morbidity and mortality in pediatric patients worldwide. However, accurate viral and immunologic markers to predict clinical outcomes of this patient population are still lacking. Droplet digital PCR assays for influenza and respira...

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Main Authors: Diego R Hijano, Jessica Brazelton de Cardenas, Gabriela Maron, Cherilyn D Garner, Jose A Ferrolino, Ronald H Dallas, Zhengming Gu, Randall T Hayden
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2019-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0220908
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author Diego R Hijano
Jessica Brazelton de Cardenas
Gabriela Maron
Cherilyn D Garner
Jose A Ferrolino
Ronald H Dallas
Zhengming Gu
Randall T Hayden
author_facet Diego R Hijano
Jessica Brazelton de Cardenas
Gabriela Maron
Cherilyn D Garner
Jose A Ferrolino
Ronald H Dallas
Zhengming Gu
Randall T Hayden
author_sort Diego R Hijano
collection DOAJ
description Acute respiratory tract infections are a major cause of respiratory morbidity and mortality in pediatric patients worldwide. However, accurate viral and immunologic markers to predict clinical outcomes of this patient population are still lacking. Droplet digital PCR assays for influenza and respiratory syncytial virus (RSV) were designed and performed in 64 respiratory samples from 23 patients with influenza virus infection and 73 samples from 19 patients with RSV infection. Samples of patients with hematologic malignancies, solid tumors, or sickle cell disease were included. Clinical information from institutional medical records was reviewed to assess disease severity. Samples from patients with fever or respiratory symptoms had a significantly higher viral loads than those from asymptomatic patients. Samples from patients with influenza virus and RSV infection collected at presentation had significantly higher viral loads than those collected from patients after completing a course of oseltamivir or ribavirin, respectively. RSV loads correlated positively with clinical symptoms in patients ≤5 years of age, whereas influenza viral loads were associated with clinical symptoms, irrespective of age. Patients receiving antivirals for influenza and RSV had a significant reduction in viral loads after completing therapy. Digital PCR offers an effective method to monitor the efficacy of antiviral treatment for respiratory tract infections in immunocompromised hosts.
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spelling doaj.art-15588e28c01e4d9b9024e9ad843eb3332022-12-21T20:46:50ZengPublic Library of Science (PLoS)PLoS ONE1932-62032019-01-01149e022090810.1371/journal.pone.0220908Clinical correlation of influenza and respiratory syncytial virus load measured by digital PCR.Diego R HijanoJessica Brazelton de CardenasGabriela MaronCherilyn D GarnerJose A FerrolinoRonald H DallasZhengming GuRandall T HaydenAcute respiratory tract infections are a major cause of respiratory morbidity and mortality in pediatric patients worldwide. However, accurate viral and immunologic markers to predict clinical outcomes of this patient population are still lacking. Droplet digital PCR assays for influenza and respiratory syncytial virus (RSV) were designed and performed in 64 respiratory samples from 23 patients with influenza virus infection and 73 samples from 19 patients with RSV infection. Samples of patients with hematologic malignancies, solid tumors, or sickle cell disease were included. Clinical information from institutional medical records was reviewed to assess disease severity. Samples from patients with fever or respiratory symptoms had a significantly higher viral loads than those from asymptomatic patients. Samples from patients with influenza virus and RSV infection collected at presentation had significantly higher viral loads than those collected from patients after completing a course of oseltamivir or ribavirin, respectively. RSV loads correlated positively with clinical symptoms in patients ≤5 years of age, whereas influenza viral loads were associated with clinical symptoms, irrespective of age. Patients receiving antivirals for influenza and RSV had a significant reduction in viral loads after completing therapy. Digital PCR offers an effective method to monitor the efficacy of antiviral treatment for respiratory tract infections in immunocompromised hosts.https://doi.org/10.1371/journal.pone.0220908
spellingShingle Diego R Hijano
Jessica Brazelton de Cardenas
Gabriela Maron
Cherilyn D Garner
Jose A Ferrolino
Ronald H Dallas
Zhengming Gu
Randall T Hayden
Clinical correlation of influenza and respiratory syncytial virus load measured by digital PCR.
PLoS ONE
title Clinical correlation of influenza and respiratory syncytial virus load measured by digital PCR.
title_full Clinical correlation of influenza and respiratory syncytial virus load measured by digital PCR.
title_fullStr Clinical correlation of influenza and respiratory syncytial virus load measured by digital PCR.
title_full_unstemmed Clinical correlation of influenza and respiratory syncytial virus load measured by digital PCR.
title_short Clinical correlation of influenza and respiratory syncytial virus load measured by digital PCR.
title_sort clinical correlation of influenza and respiratory syncytial virus load measured by digital pcr
url https://doi.org/10.1371/journal.pone.0220908
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