title: Comparison of concentration methods for detection of hepatitis A virus in water samples.
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 10(1) copies/μL and its concentration efficiency reached 79.45 ± 9.88%.
authors.affiliation: CAS Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China.|College of Animal Science and Technology, Institute of Animal Population Health, Jiangxi Agricultural University, Nanchang, 330045, China.
authors.forename: Yuting
authors.initials: Y
authors.lastname: Qiao
authors.affiliation: National Institute of Metrology, Beijing, 100013, China.
authors.forename: Zhiwei
authors.initials: Z
authors.lastname: Sui
authors.affiliation: College of Animal Science and Technology, Institute of Animal Population Health, Jiangxi Agricultural University, Nanchang, 330045, China.
authors.forename: Guoliang
authors.initials: G
authors.lastname: Hu
authors.affiliation: College of Animal Science and Technology, Institute of Animal Population Health, Jiangxi Agricultural University, Nanchang, 330045, China.
authors.forename: Huabin
authors.initials: H
authors.lastname: Cao
authors.affiliation: Hubei Wildlife Epidemic Focus and Disease Surveillance Center, Wuhan, 430075, China.
authors.forename: Guoxiang
authors.initials: G
authors.lastname: Yang
authors.affiliation: Hubei Wildlife Epidemic Focus and Disease Surveillance Center, Wuhan, 430075, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Li
authors.affiliation: Hubei Wildlife Epidemic Focus and Disease Surveillance Center, Wuhan, 430075, China.
authors.forename: Yongsong
authors.initials: Y
authors.lastname: Lei
authors.affiliation: CAS Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China.
authors.forename: Lihua
authors.initials: L
authors.lastname: Zhao
authors.affiliation: CAS Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China. chenqj@wh.iov.cn.
authors.forename: Quanjiao
authors.initials: Q
authors.lastname: Chen
mesh_terms: D005374:Filtration / Q000295:instrumentation / Q000379:methods*; D005618:Fresh Water / Q000821:virology*; D030041:Hepatitis A virus / Q000235:genetics / Q000302:isolation & purification*; D060106:Lakes / Q000821:virology*; D012367:RNA, Viral / Q000235:genetics; D060888:Real-Time Polymerase Chain Reaction; D014876:Water Pollution / Q000032:analysis
chemical_list: D012367:RNA, Viral
keywords: concentration; filtration membrane; hepatitis A virus; mixed cellulose ester (MCE) membrane; water samples