Immunofluorescence versus xTAG multiplex PCR for the detection of respiratory picornavirus infections in children

Schindera, Christina; Kraemer, Ann Lea; Regamey, Nicolas; Aebi, Christoph; Gorgievski-Hrisoho, Meri; Barbani, Maria Teresa (2010). Immunofluorescence versus xTAG multiplex PCR for the detection of respiratory picornavirus infections in children. Journal of clinical virology, 48(3), pp. 223-225. Amsterdam: Elsevier 10.1016/j.jcv.2010.04.005

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BACKGROUND: Polymerase chain reaction (PCR) is a sensitive tool for detection of respiratory picornaviruses. However, the clinical relevance of picornavirus detection by PCR is unclear. Immunofluorescence (IF), widely used to detect other respiratory viruses, has recently been introduced as a promising detection method for respiratory picornaviruses. OBJECTIVES: To compare the clinical manifestations of respiratory picornavirus infections detected by IF with those of respiratory picornavirus infections detected by xTAG multiplex PCR in hospitalized children. STUDY DESIGN: During a 1-year period, nasopharyngeal aspirates (NPA) from all children hospitalized due to an acute respiratory infection were prospectively analyzed by IF. All respiratory picornavirus positive IF samples and 100 IF negative samples were further tested with xTAG multiplex PCR. After exclusion of children with co-morbidities and viral co-infections, monoinfections with respiratory picornaviruses were detected in 108 NPA of 108 otherwise healthy children by IF and/or PCR. We compared group 1 children (IF and PCR positive, n=84) with group 2 children (IF negative and PCR positive, n=24) with regard to clinical manifestations of the infection. RESULTS: Wheezy bronchitis was diagnosed more often in group 1 than in group 2 (71% vs. 46%, p=0.028). In contrast, group 2 patients were diagnosed more frequently with pneumonia (17% vs. 6%, p=0.014) accompanied by higher levels of C-reactive protein (46mg/l vs. 11mg/l, p=0.009). CONCLUSIONS: Picornavirus detection by IF in children with acute respiratory infection is associated with the clinical presentation of wheezy bronchitis. The finding of a more frequent diagnosis of pneumonia in picornavirus PCR positive but IF negative children warrants further investigation.

Item Type:	Journal Article (Original Article)
Division/Institute:	04 Faculty of Medicine > Department of Gynaecology, Paediatrics and Endocrinology (DFKE) > Clinic of Gynaecology 04 Faculty of Medicine > Department of Gynaecology, Paediatrics and Endocrinology (DFKE) > Clinic of Paediatric Medicine 04 Faculty of Medicine > Service Sector > Institute for Infectious Diseases
UniBE Contributor:	Kraemer, Ann Lea, Regamey, Nicolas, Aebi, Christoph, Barbani, Maria Teresa
ISSN:	1386-6532
Publisher:	Elsevier
Language:	English
Submitter:	Anette van Dorland
Date Deposited:	04 Oct 2013 14:07
Last Modified:	05 Dec 2022 14:00
Publisher DOI:	10.1016/j.jcv.2010.04.005
PubMed ID:	20471907
Web of Science ID:	000278658600016
URI:	https://boris.unibe.ch/id/eprint/138 (FactScience: 196484)