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J Clin Virol. 2012 Dec;55(4):339-42. doi: 10.1016/j.jcv.2012.08.008. Epub 2012 Sep 11.

Identification of human parechovirus genotype, HPeV-12, in a paralytic child with diarrhea.

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1
Department of Biotechnology, Quaid-i-Azam University, Islamabad, Pakistan.

Abstract

BACKGROUND:

New genotypes of human parechoviruses have been readily identified after improvement of diverse diagnostic tools. We hereby report the detection of a new genotype, HPeV 12, from a child presented with diarrhea and paralysis.

OBJECTIVES:

The genetic variability of human parechoviruses has recently expanded defining 16 genotypes however data available covers only 11 genotypes. The present study was designed to determine the genetic characterization of human parechovirus identified in a child with gastroenteritis and acute flaccid paralysis (AFP).

STUDY DESIGN:

Stool samples are referred to Virology Department, NIH-Pakistan for the routine detection of enteroviruses and polioviruses through cell culture and RT-PCR. Five of isolates showing cytopathic effect on L20B cell line but negative for poliovirus were further explored for human parechovirus using multiple cell lines and RT-PCR.

RESULTS:

Human Coxsackie A virus type 2, 3, 6 and 20 were found in four samples whereas the fifth sample contained human parechovirus genotype 12. Efficient growth of human parechovirus was found on L20B cells while Vero and LLC-MK2 cells showed no apparent cytopathic effect.

CONCLUSIONS:

This study describes the detection of a new human parechovirus genotype (HPeV-12) in a paralytic child with diarrhea. Human parechoviruses are now considered as potential pathogens that may cause a number of serious clinical complications especially in infants and young children. These findings emphasize to conduct large scale epidemiological surveys in the country to understand their association with clinical diseases especially gastroenteritis, respiratory and neurological disorders.

PMID:
22975083
DOI:
10.1016/j.jcv.2012.08.008
[Indexed for MEDLINE]
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