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. 2009 Jul 11;106(1):16–24. doi: 10.1016/S0929-6646(09)60211-4

Detection of Human Metapneumovirus in Hospitalized Children with Acute Respiratory Tract Infection Using Real-time RT-PCR in a Hospital in Northern Taiwan

Pei-Chun Chan a, Chung-Yi Wang b, Ping-Sheng Wu a, Po-Young Chang a, Tsao-Ton Yang a, Yu-Ping Chiang a, Chuan-Liang Kao c, Luan-Yin Chang a, Chun-Yi Lu a, Ping-Ing Lee a, Jung-Min Chen c, Pei-Lan Shao c, Fu-Yuan Huang d, Chin-Yun Lee a, Li-Min Huang a,*
PMCID: PMC7135508  PMID: 17282966

Abstract

Background/purpose

Human metapneumovirus (hMPV) is a newly discovered respiratory pathogen. This prospective hospital-based study investigated the clinical role and features of hMPV in Taiwan.

Methods

Respiratory specimens collected from hospitalized children with acute respiratory tract infection between September 1, 2003 and April 10, 2005 were screened for metapneumovirus using real-time reverse transcription-polymerase chain reaction (RT-PCR).

Results

During the study period, 930 specimens were obtained from 926 hospitalized children. After exclusion of 200 cases due to lack of clinical evidence of airway infection or diseases with known etiology, 726 were included in the analysis. Among these, 33 children had a positive result for hMPV infection. The majority of these patients were admitted during spring and early summer. Twenty-one (63.6%) were younger than 2 years of age. hMPV accounted for 13.3% of respiratory infections occurring between the ages of 18 and 24 months and was as common a respiratory pathogen as respiratory syncytial virus (RSV) in that age group. The 11 patients (33.3%) with underlying diseases had a similar disease course to those without underlying diseases. A co-pathogen was found in 11 patients (33.3%). Infected children between 2 and 5 years of age had significantly higher titers of hMPV in their respiratory specimens (103.88 copies/mL) than children younger than 2 years (102.26 copies/mL) (p = 0.013) and children older than 5 years (102.25 copies/mL) (p = 0.005). hMPV positive cases were significantly older than those with RSV infection (p = 0.002) and had a shorter duration of hospitalization (p = 0.001), fewer days of oxygen use (p = 0.001) and higher levels of C-reactive protein (p = 0.004).

Conclusion

Metapneumovirus circulates in children in northern Taiwan during spring and early summer. hMPV was the most common respiratory pathogen in children aged between 18 and 24 months hospitalized with acute respiratory tract infection. Real-time RT-PCR is a sensitive method for investigating the epidemiology and diseases associated with hMPV. [J Formos Med Assoc 2007;106(1):16-24]

Key Words: children, metapneumovirus, prospective study, real-time RT-PCR, respiratory tract infection

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Articles from Journal of the Formosan Medical Association are provided here courtesy of Elsevier

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