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Virologica Sinica, 31 (4) : 331, 2016
Research Article
Comparison of concentration methods for detection of hepatitis A virus in water samples
1. CAS Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, China
2. National Institute of Metrology, Beijing 100013, China
3. College of Animal Science and Technology, Institute of Animal Population Health, Jiangxi Agricultural University, Nanchang 330045, China
4. Hubei Wildlife Epidemic Focus and Disease Surveillance Center, Wuhan 430075, China
 Correspondence: chenqj@wh.iov.cn
(1155.91KB)  (1220.84KB)  
Abstract
Hepatitis A virus is a pathogen associated with water pollution. Contaminated drinking water can cause hepatitis A outbreaks, lead to economic losses, and even threaten human lives. It is difficult to detect low levels of hepatitis A virus in water, so the virus must be concentrated in order to quantify it accurately. Here, we present a simple, rapid, efficient technique for the concentration and detection of hepatitis A virus in water. Our data showed that adding phosphate-buffered saline to the water, pre-filtering the water, and adding Trizol reagent directly to the filtration membrane can significantly improve concentration efficiency. Of three types of filtration membranes studied (mixed cellulose ester membrane, polyvinylidene fluoride membrane, and nylon membrane), the concentration efficiency using mixed cellulose ester membrane with a 0.1-μm pore size was the highest, reaching 92.62 ± 5.17%. This method was used to concentrate hepatitis A virus in water samples from Donghu Lake. Using SYBR Green real-time reverse transcription polymerase chain reaction analysis, the detection sensitivity of this method reached 101 copies/μL and its concentration efficiency reached 79.45 ± 9.88%.
Received: 12 Apr 2016  Accepted: 1 Aug 2016  Published online: 10 Aug 2016
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