Comparing the yield of oropharyngeal swabs and sputum for detection of 11 common pathogens in hospitalized children with lower respiratory tract infection
Abstract Background Advances in molecular laboratory techniques are changing the prospects for the diagnosis of viral infectious diseases. Multiplex polymerase chain reaction assay (multiplex-PCR) can detect dozens of pathogens simultaneously, greatly reducing turnaround time (TAT) and improving det...
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doaj-9f98209cb5bd43a88e2f15e2ded9fae72020-11-25T03:30:17ZengBMCVirology Journal1743-422X2019-06-011611710.1186/s12985-019-1177-xComparing the yield of oropharyngeal swabs and sputum for detection of 11 common pathogens in hospitalized children with lower respiratory tract infectionLe Wang0Shuo Yang1Xiaotong Yan2Teng Liu3Zhishan Feng4Guixia Li5Institute of Pediatric Research, Children’s Hospital of Hebei ProvinceInstitute of Pediatric Research, Children’s Hospital of Hebei ProvinceInstitute of Pediatric Research, Children’s Hospital of Hebei ProvinceInstitute of Pediatric Research, Children’s Hospital of Hebei ProvinceHebei General HospitalInstitute of Pediatric Research, Children’s Hospital of Hebei ProvinceAbstract Background Advances in molecular laboratory techniques are changing the prospects for the diagnosis of viral infectious diseases. Multiplex polymerase chain reaction assay (multiplex-PCR) can detect dozens of pathogens simultaneously, greatly reducing turnaround time (TAT) and improving detection sensitivity. But as a double-edged sword, due to the high sensitivity of PCR, the type of respiratory specimens is critical to diagnosis. In this work, we performed a head-to-head comparison to evaluate the multiplex-PCR yields between two samples, sputum and flocked oropharyngeal swabs (OPS). Methods Eleven common respiratory pathogens were tested in hospitalized children< 13 years of age who met the criteria for lower respiratory tract infection by GeXP-based multiplex-PCR of paired OPS and sputum. Results From January to June 2018, 440 children with paired OPS and sputum were tested. The positive rate was 84% (369/440) for OPS and 88% (386/440) for sputum (p = .007). The frequency of detection of HRV, RSV, Influenza A virus, HMPV, parainfluenza virus, adenovirus, M. pneumoniae, coronavirus, bocavirus and C. pneumoniae in sputa was higher than that of OPSs (all p < .001). Both types of specimens had similarly very good kappa values for most of pathogens, except for Mycoplasma pneumonia (κ = 0.61) and Chlamydia pneumoniae (κ = 0.24). Additionally, 79.3% (349/440) of cases showed consistent results between the two types of samples, and they were significantly younger than patients with inconsistent results (p = .002). Conclusions Flocked oropharyngeal swabs and sputum performed similarly for the detection of common respiratory pathogens in hospitalized children by multiplex-PCR, except for Mycoplasma pneumoniae and Chlamydia pneumoniae. Young patients are likely to have consistent results between the two specimens.http://link.springer.com/article/10.1186/s12985-019-1177-xOropharyngeal swabsSputumChildrenLRTI |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Le Wang Shuo Yang Xiaotong Yan Teng Liu Zhishan Feng Guixia Li |
spellingShingle |
Le Wang Shuo Yang Xiaotong Yan Teng Liu Zhishan Feng Guixia Li Comparing the yield of oropharyngeal swabs and sputum for detection of 11 common pathogens in hospitalized children with lower respiratory tract infection Virology Journal Oropharyngeal swabs Sputum Children LRTI |
author_facet |
Le Wang Shuo Yang Xiaotong Yan Teng Liu Zhishan Feng Guixia Li |
author_sort |
Le Wang |
title |
Comparing the yield of oropharyngeal swabs and sputum for detection of 11 common pathogens in hospitalized children with lower respiratory tract infection |
title_short |
Comparing the yield of oropharyngeal swabs and sputum for detection of 11 common pathogens in hospitalized children with lower respiratory tract infection |
title_full |
Comparing the yield of oropharyngeal swabs and sputum for detection of 11 common pathogens in hospitalized children with lower respiratory tract infection |
title_fullStr |
Comparing the yield of oropharyngeal swabs and sputum for detection of 11 common pathogens in hospitalized children with lower respiratory tract infection |
title_full_unstemmed |
Comparing the yield of oropharyngeal swabs and sputum for detection of 11 common pathogens in hospitalized children with lower respiratory tract infection |
title_sort |
comparing the yield of oropharyngeal swabs and sputum for detection of 11 common pathogens in hospitalized children with lower respiratory tract infection |
publisher |
BMC |
series |
Virology Journal |
issn |
1743-422X |
publishDate |
2019-06-01 |
description |
Abstract Background Advances in molecular laboratory techniques are changing the prospects for the diagnosis of viral infectious diseases. Multiplex polymerase chain reaction assay (multiplex-PCR) can detect dozens of pathogens simultaneously, greatly reducing turnaround time (TAT) and improving detection sensitivity. But as a double-edged sword, due to the high sensitivity of PCR, the type of respiratory specimens is critical to diagnosis. In this work, we performed a head-to-head comparison to evaluate the multiplex-PCR yields between two samples, sputum and flocked oropharyngeal swabs (OPS). Methods Eleven common respiratory pathogens were tested in hospitalized children< 13 years of age who met the criteria for lower respiratory tract infection by GeXP-based multiplex-PCR of paired OPS and sputum. Results From January to June 2018, 440 children with paired OPS and sputum were tested. The positive rate was 84% (369/440) for OPS and 88% (386/440) for sputum (p = .007). The frequency of detection of HRV, RSV, Influenza A virus, HMPV, parainfluenza virus, adenovirus, M. pneumoniae, coronavirus, bocavirus and C. pneumoniae in sputa was higher than that of OPSs (all p < .001). Both types of specimens had similarly very good kappa values for most of pathogens, except for Mycoplasma pneumonia (κ = 0.61) and Chlamydia pneumoniae (κ = 0.24). Additionally, 79.3% (349/440) of cases showed consistent results between the two types of samples, and they were significantly younger than patients with inconsistent results (p = .002). Conclusions Flocked oropharyngeal swabs and sputum performed similarly for the detection of common respiratory pathogens in hospitalized children by multiplex-PCR, except for Mycoplasma pneumoniae and Chlamydia pneumoniae. Young patients are likely to have consistent results between the two specimens. |
topic |
Oropharyngeal swabs Sputum Children LRTI |
url |
http://link.springer.com/article/10.1186/s12985-019-1177-x |
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