Development of a novel protocol for RT-multiplex PCR to detect diarrheal viruses among infants and children with acute gastroenteritis in Eastern Russia

Viral gastroenteritis is one of the most common illnesses in humans worldwide and it has a great impact on people. Recently, we reported three RT-multiplex PCR assays termed A, B and C that could detect three groups of diarrheal viruses; group A, B and C rotaviruses and adenovirus [Phan et al., J Me...

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Bibliographic Details
Published in:	Clinical laboratory (Heidelberg) Vol. 51; no. 7-8; p. 429
Main Authors:	Phan, Tung Gia, Nguyen, Tuan Anh, Yan, Hainian, Yagyu, Fumihiro, Kozlov, Vladimir, Kozlov, Alexei, Okitsu, Shoko, Müller, Werner E G, Ushuijma, Hiroshi
Format:	Journal Article
Language:	English
Published:	Germany 2005
Subjects:	Child Child, Preschool Diarrhea - virology Diarrhea, Infantile - virology Feces - virology Gastroenteritis - virology Genome, Viral Hepatitis A virus - isolation & purification Humans Infant Infant, Newborn Molecular Epidemiology - methods Molecular Epidemiology - standards Norovirus - isolation & purification Reverse Transcriptase Polymerase Chain Reaction - methods Rotavirus - isolation & purification Russia Sapovirus - isolation & purification Sensitivity and Specificity Russia
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Summary:	Viral gastroenteritis is one of the most common illnesses in humans worldwide and it has a great impact on people. Recently, we reported three RT-multiplex PCR assays termed A, B and C that could detect three groups of diarrheal viruses; group A, B and C rotaviruses and adenovirus [Phan et al., J Med Virol 2004; 74:173-9]; norovirus GI and GII, sapovirus and astrovirus [Yan et al., J Virol Meth 2003; 114:37-44]; enteroviruses, hepatitis A and E viruses and influenza A virus [Phan et al., Arch Virol 2005; 1175-85], respectively. In the present study, we developed a novel protocol with a small volume of reaction mixture for RT and PCR products (only 8 microl and 11 microl, respectively) that can amplify genomes of target viruses simultaneously. A total of 100 fecal specimens from infants and children with acute gastroenteritis in Birobiclzhan city, Eastern Russia, were collected during November 2003 and March 2004 and tested for the presence of those viruses by the novel RT-multiplex PCR protocol. Group A rotavirus was the most prevalent (67%), followed by norovirus GII (4%), group C rotavirus (1%), and sapovirus (1%). Interestingly, one fecal specimen turned out to be positive for hepatitis A virus. The sensitivity and specificity of RT-multiplex PCR assays with a novel protocol demonstrated a strong validation against the previously published RT-multiplex PCR. The findings clearly indicated that this novel protocol is simple and cost-effective to investigate the molecular epidemiology of acute gastroenteritis caused by diarrheal viruses. This report is the first, to our knowledge, detecting hepatitis A virus in feces from diarrheal infants and children in Eastern Russia.
ISSN:	1433-6510