Quantitative RT-PCR Detection of Hepatitis A Virus, Rotaviruses and Enteroviruses in the Buffalo River and Source Water Dams in the Eastern Cape Province of South Africa

International Journal of Environmental Research and Public Health

Vincent Nnamdigadi Chigor¹ 

[1] Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Private Bag X1314, Alice 5700, Eastern Cape, South Africa;

关键词: real-time RT-PCR;    enteric RNA viruses;    surface waters;    detection;    quantification;    hepatitis A virus;    rotaviruses;    enteroviruses;   

DOI  :  10.3390/ijerph9114017

来源: mdpi

【 摘 要 】

Human enteric viruses (HEntVs) are a major cause of water-related diseases. The prevalence of hepatitis A virus (HAV), rotaviruses (RoV) and enteroviruses (EnV) in Buffalo River waters was assessed quantitatively over a period of 12 months (August 2010 to July 2011). Seventy-two samples were collected from six sites, including three dams, and concentrated using the adsorption-elution method. Viral RNA was extracted using a commercial kit, and the viruses were quantified by real-time quantitative reverse transcriptase PCR (RT-qPCR). Two or more viruses were detected in 12.5% of the samples. HAV was detected in 43.1% of the samples and in significantly (p < 0.05) varying concentrations of 1.5 × 10¹–1.9 × 10⁵ genome copies/L compared to RoV and EnV, while RoVs were detected in 13.9% of samples, with concentrations ranging from 2.5 × 10¹–2.1 × 10³ genome copies/L, and EnV were detected in 9.7% of the samples, with concentrations ranging from 1.3 × 10¹–8.6 × 10¹ genome copies/L. Only HAV was detected at all the sites, with the Bridle Drift Dam recording significantly higher (p < 0.05) concentrations. The presence of enteric viruses in Buffalo River may constitute public health risks and the incidence of HAV at all the sites could reflect both the epidemiological status of hepatitis A and HAV persistence in the water environments.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.