Abstract
Foodborne illnesses associated with contaminated fresh produce are a common public health problem and there is an upward trend of outbreaks caused by enteric viruses, especially human noroviruses (HNoVs) and hepatitis A virus (HAV). This study aimed to assess the use of DNase and RNase coupled to qPCR and RT-qPCR, respectively, to detect intact particles of human adenoviruses (HAdVs), HNoV GI and GII and HAV in fresh produce. Different concentrations of DNase and RNase were tested to optimize the degradation of free DNA and RNA from inactivated HAdV and murine norovirus (MNV), respectively. Results indicated that 10 µg/ml of RNase was able to degrade more than 4 log10 (99.99%) of free RNA, and 1 U of DNase degraded the range of 0.84–2.5 log10 of free DNA depending on the fresh produce analysed. The treatment with nucleases coupled to (RT)-qPCR was applied to detect potential infectious virus in organic lettuce, green onions and strawberries collected in different seasons. As a result, no intact particles of HNoV GI and GII were detected in the 36 samples analysed, HAdV was found in one sample and HAV was present in 33.3% of the samples, without any reasonable distribution pattern among seasons. In conclusion, RT-qPCR preceded by RNase treatment of eluted samples from fresh produce is a good alternative to detect undamaged RNA viruses and therefore, potential infectious viruses. Moreover, this study provides data about the prevalence of enteric viruses in organic fresh produce from Brazil.
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Albinana-Gimenez, N., Miagostovich, M. P., Calgua, B., Huguet, J. M., Matia, L., & Girones, R. (2009). Analysis of adenoviruses and polyomaviruses quantified by qPCR as indicators of water quality in source and drinking-water treatment plants. Water Research, 43(7), 2011–2019. doi:10.1016/j.watres.2009.01.025.
Anonymous. (2013). ISO/TS 15216. Microbiology of food and animal stuffs—Horizontal method for detection of hepatis A virus and norovirus in food using real-time RT-PCR. International Organization for Standardization.
Baert, L., Wobus, C. E., Coillie, E. Van, Thackray, L. B., Debevere, J., & Uyttendaele, M. (2008). Detection of murine norovirus 1 by using plaque assay, transfection assay, and real-time reverse transcription-PCR before and after heat exposure. Applied and Environmental Microbiology, 74(2), 543–546. doi:10.1128/AEM.01039-07.
Bosch, A., Sanchez, G., Abbaszadegan, M., Carducci, A., Guix, S., Le Guyader, F. S., et al. (2011). Analytical methods for virus detection in water and food. Food Analytical Methods, 4(1), 4–12.
Callejón, R. M., Rodríguez-Naranjo, M. I., Ubeda, C., Hornedo-Ortega, R., Garcia-Parrilla, M. C., & Troncoso, A. M. (2015). Reported foodborne outbreaks due to fresh produce in the United States and European Union: Trends and causes. Foodborne Pathogens and Disease, 12, 32–38. doi:10.1089/fpd.2014.1821.
Cannon, J. L., Papafragkou, E., Park, G. W., & Osborne, J. (2006). Surrogates for the study of norovirus stability and inactivation in the environment: a comparison of murine norovirus and feline calicivirus. Journal of Food Protection, 69(11), 2761–2765.
Collier, M. G., Khudyakov, Y. E., Selvage, D., Adams-cameron, M., Epson, E., Cronquist, A., et al. (2014). Outbreak of hepatitis A in the USA associated with frozen pomegranate arils imported from Turkey: An epidemiological case study. The Lancet Infectious Diseases, 14(10), 976–981. doi:10.1016/S1473-3099(14)70883-7.
Colombet, J., Robin, A., Lavie, L., Bettarel, Y., Cauchie, H. M., & Sime-Ngando, T. (2007). Virioplankton “pegylation”: Use of PEG (polyethylene glycol) to concentrate and purify viruses in pelagic ecosystems. Journal of Microbiological Methods, 71(3), 212–219.
Cook, N., & D’Agostino, M. (2013). Prevalence and control of hepatitis A virus in fresh produce. In H. Budka, H. B. Frans, J. M. Smulders, & B. Nørrung (Eds.), Foodborne viruses and prions and their significance for public health (Vol. 6, pp. 169–180). Wageningen: Wageningen Academic Publishers. doi:10.3920/978-90-8686-780-6.
De Paula, V. S., Diniz-mendes, L., Villar, L. M., Luz, S. L. B., Silva, L. A., Jesus, M. S., et al. (2007). Hepatitis A virus in environmental water samples from the Amazon Basin. Water Research, 41, 1169–1176. doi:10.1016/j.watres.2006.11.029.
Deboosere, N., Pinon, A., Caudrelier, Y., Delobel, A., Merle, G., Perelle, S., et al. (2012). Adhesion of human pathogenic enteric viruses and surrogate viruses to inert and vegetal food surfaces. Food Microbiology, 32(1), 48–56. doi:10.1016/j.fm.2012.04.007.
Diez-Valcarce, M., Kovac, K., Raspor, P., Rodríguez-Lázaro, D., & Hernández, M. (2011). Virus genome quantification does not predict norovirus infectivity after application of food inactivation processing technologies. Food and Environmental Virology, 3, 141–146. doi:10.1007/s12560-011-9070-9.
Donnan, E. J., Fielding, J. E., Gregory, J. E., Lalor, K., Rowe, S., Goldsmith, P., et al. (2012). A multistate outbreak of hepatitis A associated with semidried tomatoes in Australia, 2009. Clinical Infectious Diseases, 54, 775–781. doi:10.1093/cid/cir949.
EFSA & ECDC. (2014). The European Union summary report on trends and sources of zoonoses, zoonotic agents and food-borne outbreaks in 2012. EFSA Journal, 12, 3547. doi:10.2903/j.efsa.2014.3547
EFSA & ECDC. (2015). The European Union summary report on trends and sources of zoonoses, zoonotic agents and food-borne outbreaks in 2014. EFSA Journal, 13, 4329
EFSA & ECDC. (2016). The Euroean Union summary report on trends and sources of zoonsoes, zoonotic agents and food-borne outbreaks in 2015. EFSA Journal, 14, 4634. doi:10.2903/j.efsa.2015.4329
Elizaquível, P., Aznar, R., & Sánchez, G. (2013). Recent developments in the use of viability dyes and quantitative PCR in the food microbiology field. Journal of Applied Microbiology, 116, 1–13. doi:10.1111/jam.12365.
Escudero-Abarca, B. I., Rawsthorne, H., Goulter, R. M., Suh, S. H., & Jaykus, L. A. (2014). Molecular methods used to estimate thermal inactivation of a prototype human norovirus: More heat resistant than previously believed? Food Microbiology, 41, 91–95. doi:10.1016/j.fm.2014.01.009.
Ettayebi, K., Crawford, S. E., Murakami, K., Broughman, J. R., Karandikar, U., Tenge, V. R., et al. (2016). Replication of human noroviruses in stem cell— derived human enteroids. Science, 353, 1387–1393.
Fongaro, G., do Nascimento, M. A., Rigotto, C., Ritterbusch, G., da Silva, A., Esteves, P. A., & M Barardi, C. R. (2013). Evaluation and molecular characterization of human adenovirus in drinking water supplies: viral integrity and viability assays. Virology Journal, 10, 166–175
Hall, A., Wikswo, M., Pringle, K., Gouldd, L., & Parashar, U. (2014). Vital Signs: foodborne norovirus outbreaks—United States, 2009–2012. MMWR Morb Mort Wkly Rep, Recomm Rep, 63, 491–495
Hernroth, B. E., Girones, R., & Allard, A. K. (2002). Environmental factors influencing human viral pathogens and their potential indicator organisms in the Blue Mussel, Mytilus edulis: The first scandinavian report. Applied and Environmental Microbiology, 68(9), 4523–4533. doi:10.1128/AEM.68.9.4523.
Jothikumar, N., Cromeans, T. L., Sobsey, M. D., & Robertson, B. H. (2005). Development and evaluation of a broadly reactive TaqMan assay for rapid detection of Hepatitis A virus. Applied and Environmental Microbiology, 71(6), 3359–3363. doi:10.1128/AEM.71.6.3359.
Kageyama, T., Kojima, S., Shinohara, M., Uchida, K., Fukushi, S., Hoshino, F. B., et al. (2003). Broadly reactive and highly sensitive assay for Norwalk-Like viruses based on Real-Time quantitative reverse transcription-PCR. Journal of Clinical Microbiology, 41(4), 1548–1557. doi:10.1128/JCM.41.4.1548.
Kim, K., Katayama, H., Kitajima, M., Tohya, Y., & Ohgaki, S. (2011). Development of a real-time RT-PCR assay combined with ethidium monoazide treatment for RNA viruses and its application to detect viral RNA after heat exposure. Water Science and Technology, 63, 502–507. doi:10.2166/wst.2011.249.
Kim, S. Y., & Ko, G. (2012). Using propidium monoazide to distinguish between viable and nonviable bacteria, MS2 and murine norovirus. Letters in Applied Microbiology, 55, 182–188. doi:10.1111/j.1472-765X.2012.03276.x.
Knight, A., Li, D., Uyttendaele, M., & Jaykus, L. (2012). A critical review of methods for detecting human noroviruses and predicting their infectivity. Critical Reviews in Microbiology, 39, 295–309. doi:10.3109/1040841X.2012.709820.
Lamhoujeb, S., Fliss, I., Ngazoa, S. E., & Jean, J. (2008). Evaluation of the persistence of infectious human noroviruses on food surfaces by using real-time nucleic acid sequence-based. Applied and Environmental Microbiology, 74(11), 3349–3355. doi:10.1128/AEM.02878-07.
Lassen, S. G., Soborg, B., Midgley, S. E., Steens, A., & Vold, L. (2013). Ongoing multi-strain food-borne hepatitis A outbreak with frozen berries as suspected vehicle: Four Nordic countries affected, October 2012 to April 2013. Euro Surveillance, 18, 20467.
Levy, H. C., Bostina, M., Filman, D. J., & Hogle, J. M. (2010). Catching a virus in the act of RNA release: a novel poliovirus uncoating intermediate characterized by cryo-electron microscopy. Journal of Virology, 84(9), 4426–4441. doi:10.1128/JVI.02393-09.
Li, D., Keuckelaere, A. De, & Uyttendaele, M. (2015). Fate of foodborne viruses in the ‘Farm to Fork’ chain of fresh produce. Comprehensive Reviews in Food Science and Food Safety, 14, 755–770. doi:10.1111/1541-4337.12163.
Lynch, M. F., Tauxe, R. V., & Hedberg, C. W. (2009). The growing burden of foodborne outbreaks due to contaminated fresh produce: Risks and opportunities. Epidemiology and Infection, 137(3), 307–315. doi:10.1017/S0950268808001969.
Marti, E., & Barardi, C. R. M. (2016). Detection of human adenoviruses in organic fresh produce using molecular and cell culture-based methods. International Journal of Food Microbiology, 230, 40–44. doi:10.1016/j.ijfoodmicro.2016.04.018.
Maunula, L., Kaupke, A., Vasickova, P., Söderberg, K., Kozyra, I., Lazic, S., et al. (2013). Tracing enteric viruses in the European berry fruit supply chain. International Journal of Food Microbiology, 167, 177–185. doi:10.1016/j.ijfoodmicro.2013.09.003.
Mormann, S., Dabisch, M., & Becker, B. (2010). Effects of technological processes on the tenacity and inactivation of Norovirus genogroup II in experimentally contaminated foods. Applied and Environmental Microbiology, 76(2), 536–545. doi:10.1128/AEM.01797-09.
Nowak, P., Topping, J. R., Bellamy, K., Fotheringham, V., Gray, J. J., Golding, J. P., et al. (2011). Virolysis of Feline calicivirus and human GII.4 Norovirus following chlorine exposure under standardized light soil disinfection conditions. Journal of Food Protection, 74(12), 2113–2118. doi:10.4315/0362-028X.JFP-11-087.
Nuanualsuwan, S., & Cliver, D. O. (2003). Capsid functions of inactivated human picornaviruses and Feline calicivirus. Applied and Environmental Microbiology, 69(1), 350–357. doi:10.1128/AEM.69.1.350.
Parshionikar, S., Laseke, I., & Fout, G. S. (2010). Use of propidium monoazide in reverse transcriptase PCR to distinguish between infectious and noninfectious enteric viruses in water samples. Applied and Environmental Microbiology, 76(13), 4318–4326. doi:10.1128/AEM.02800-09.
Pasloske, B. L. (2001). Ribonuclease inhibitors. In C. H. Schien (Ed.), Nuclease methods and protocols (pp. 105–111). Totowa, NJ: Humana Press.
Randazzo, W., López-gálvez, F., Allende, A., Aznar, R., & Sánchez, G. (2016). Evaluation of viability PCR performance for assessing norovirus infectivity in fresh-cut vegetables and irrigation water. International Journal of Food Microbiology, 229, 1–6. doi:10.1016/j.ijfoodmicro.2016.04.010.
Rigotto, C., Victoria, M., Moresco, V., Kolesnikovas, C. K., Corrêa, A. A., Souza, D. S. M., et al. (2010). Assessment of adenovirus, hepatitis A virus and rotavirus presence in environmental samples in Florianopolis, South Brazil. Journal of Applied Microbiology, 109(6), 1979–1987. doi:10.1111/j.1365-2672.2010.04827.x.
Rodríguez-Lázaro, D., Cook, N., Ruggeri, F. M., Sellwood, J., Nasser, A., Nascimento, M. S. J., et al. (2012). Virus hazards from food, water and other contaminated environments. FEMS Microbiology Reviews, 36(4), 786–814. doi:10.1111/j.1574-6976.2011.00306.x.
Rzeżutka, A., & Cook, N. (2004). Survival of human enteric viruses in the environment and food. FEMS Microbiology Reviews, 28(4), 441–453. doi:10.1016/j.femsre.2004.02.001.
Sánchez, G., Elizaquível, P., & Aznar, R. (2012). Discrimination of infectious Hepatitis A viruses by propidium monoazide Real-Time RT-PCR. Food and Environmental Virology, 4, 21–25. doi:10.1007/s12560-011-9074-5.
Scallan, E., Hoekstra, R. M., Angulo, F. J., Tauxe, R. V., Widdowson, M., Roy, S. L., et al. (2011). Foodborne illness acquired in the United States—Major pathogens. Emerging Infectious Diseases, 17(1), 7–15. doi:10.3201/eid1701.P11101.
Topping, J. R., Schnerr, H., Haines, J., Scott, M., Carter, M. J., Willcocks, M. M., et al. (2009). Temperature inactivation of Feline calicivirus vaccine strain FCV F-9 in comparison with human noroviruses using an RNA exposure assay and reverse transcribed quantitative real-time polymerase chain reaction-A novel method for predicting virus infectivity. Journal of Virological Methods, 156(1–2), 89–95. doi:10.1016/j.jviromet.2008.10.024.
Viancelli, A., Garcia, L. A. T., Kunz, A., Steinmetz, R., Esteves, P. A., & Barardi, C. R. M. (2012). Detection of circoviruses and porcine adenoviruses in water samples collected from swine manure treatment systems. Research in Veterinary Science, 93(1), 538–543. doi:10.1016/j.rvsc.2011.07.022.
WHO. (2015). WHO estimates of the global burden of foodborne diseases: Foodborne diseases burden epidemiology reference group 2007–2015 (pp. 2007–2015). Geneva: WHO.
Acknowledgements
E. Marti received a “Bolsa Jovens Talentos (BJT)” scholarship (303491/2014-0) from the Science without Borders Programme from the National Council for Scientific and Technological Development (CNPq; Brazil Government). The same CNPq programme (Project 400183/2014-5) also supported this work.
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Marti, E., Ferrary-Américo, M. & Barardi, C.R.M. Detection of Potential Infectious Enteric Viruses in Fresh Produce by (RT)-qPCR Preceded by Nuclease Treatment. Food Environ Virol 9, 444–452 (2017). https://doi.org/10.1007/s12560-017-9300-x
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DOI: https://doi.org/10.1007/s12560-017-9300-x