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Published in: Virology Journal 1/2013

Open Access 01-12-2013 | Research

A recombinant pseudotyped lentivirus expressing the envelope glycoprotein of Hantaan virus induced protective immunity in mice

Authors: Lan Yu, Wentao Bai, Xingan Wu, Liang Zhang, Lei Zhang, Puyuan Li, Fang Wang, Ziyu Liu, Fanglin Zhang, Zhikai Xu

Published in: Virology Journal | Issue 1/2013

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Abstract

Background

Hantaviruses cause acute hemorrhagic fever with renal syndrome (HFRS). Currently, several types of inactivated HFRS vaccines are widely used, however the limited ability of these immunogen to elicit neutralizing antibodies restricts vaccine efficacy. Development of an effective vaccine to overcome this weakness is must.

Methods

In the present study, a recombinant pseudotyped lentivirus bearing the hantaan virus (HTNV) envelope glycoproteins (GP), rLV-M, was constructed. C57BL/6 mice were immunized with the rLV-M and a series of immunological assays were conducted to determine the immunogenicity of the recombinant pseudotyped lentivirus. The humoral and cell-mediated immune responses induced by rLV-M were compared with those of the inactivated HFRS vaccine.

Results

Indirect immunofluorescence assay (IFA) showed the rLV-M expressed target proteins in HEK-293cells. In mice, the rLV-M efficiently induced GP-specific humoral responses and protection against HTNV infection. Furthermore, the rLV-M induced higher neutralizing antibody titers than the inactivated HFRS vaccine control.

Conclusions

The results indicated the potential of using a pseudotyped lentivirus as a delivery vector for a hantavirus vaccine immunogen.
Appendix
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Literature
1.
go back to reference Battisti AJ, Chu YK, Chipman PR, Kaufmann B, Jonsson CB, Rossmann MG: Structural studies of Hantaan virus. J Virol 2011, 85: 835-841. 10.1128/JVI.01847-10PubMedPubMedCentralCrossRef Battisti AJ, Chu YK, Chipman PR, Kaufmann B, Jonsson CB, Rossmann MG: Structural studies of Hantaan virus. J Virol 2011, 85: 835-841. 10.1128/JVI.01847-10PubMedPubMedCentralCrossRef
2.
go back to reference Lober C, Anheier B, Lindow S, Klenk HD, Feldmann H: The Hantaan virus glycoprotein precursor is cleaved at the conserved pentapeptide WAASA. Virology 2001, 289: 224-229. 10.1006/viro.2001.1171PubMedCrossRef Lober C, Anheier B, Lindow S, Klenk HD, Feldmann H: The Hantaan virus glycoprotein precursor is cleaved at the conserved pentapeptide WAASA. Virology 2001, 289: 224-229. 10.1006/viro.2001.1171PubMedCrossRef
5.
go back to reference Nichol ST, Spiropoulou CF, Morzunov S, Rollin PE, Ksiazek TG, Feldmann H, Sanchez A, Childs J, Zaki S, Peters CJ: Genetic identification of a hantavirus associated with an outbreak of acute respiratory illness. Science 1993, 262: 914-917. 10.1126/science.8235615PubMedCrossRef Nichol ST, Spiropoulou CF, Morzunov S, Rollin PE, Ksiazek TG, Feldmann H, Sanchez A, Childs J, Zaki S, Peters CJ: Genetic identification of a hantavirus associated with an outbreak of acute respiratory illness. Science 1993, 262: 914-917. 10.1126/science.8235615PubMedCrossRef
6.
go back to reference MacNeil A, Ksiazek TG, Rollin PE: Hantavirus pulmonary syndrome, United States, 1993–2009. Emerg Infect Dis 2011, 17: 1195-1201. 10.3201/eid1707.101306PubMedPubMedCentralCrossRef MacNeil A, Ksiazek TG, Rollin PE: Hantavirus pulmonary syndrome, United States, 1993–2009. Emerg Infect Dis 2011, 17: 1195-1201. 10.3201/eid1707.101306PubMedPubMedCentralCrossRef
7.
8.
go back to reference Hjelle B: Vaccines against hantaviruses. Expert Rev Vaccines 2002, 1: 373-384. 10.1586/14760584.1.3.373PubMedCrossRef Hjelle B: Vaccines against hantaviruses. Expert Rev Vaccines 2002, 1: 373-384. 10.1586/14760584.1.3.373PubMedCrossRef
9.
go back to reference Maes P, Clement J, Van Ranst M: Recent approaches in hantavirus vaccine development. Expert Rev Vaccines 2009, 8: 67-76. 10.1586/14760584.8.1.67PubMedCrossRef Maes P, Clement J, Van Ranst M: Recent approaches in hantavirus vaccine development. Expert Rev Vaccines 2009, 8: 67-76. 10.1586/14760584.8.1.67PubMedCrossRef
10.
go back to reference Khaiboullina SF, St Jeor SC: Hantavirus immunology. Viral Immunol 2002, 15: 609-625. 10.1089/088282402320914548PubMedCrossRef Khaiboullina SF, St Jeor SC: Hantavirus immunology. Viral Immunol 2002, 15: 609-625. 10.1089/088282402320914548PubMedCrossRef
11.
go back to reference Arikawa J, Schmaljohn AL, Dalrymple JM, Schmaljohn CS: Characterization of Hantaan virus envelope glycoprotein antigenic determinants defined by monoclonal antibodies. J Gen Virol 1989,70(Pt 3):615-624.PubMedCrossRef Arikawa J, Schmaljohn AL, Dalrymple JM, Schmaljohn CS: Characterization of Hantaan virus envelope glycoprotein antigenic determinants defined by monoclonal antibodies. J Gen Virol 1989,70(Pt 3):615-624.PubMedCrossRef
12.
go back to reference Schmaljohn CS, Chu YK, Schmaljohn AL, Dalrymple JM: Antigenic subunits of Hantaan virus expressed by baculovirus and vaccinia virus recombinants. J Virol 1990, 64: 3162-3170.PubMedPubMedCentral Schmaljohn CS, Chu YK, Schmaljohn AL, Dalrymple JM: Antigenic subunits of Hantaan virus expressed by baculovirus and vaccinia virus recombinants. J Virol 1990, 64: 3162-3170.PubMedPubMedCentral
13.
go back to reference Hooper JW, Custer DM, Thompson E, Schmaljohn CS: DNA vaccination with the Hantaan virus M gene protects Hamsters against three of four HFRS hantaviruses and elicits a high-titer neutralizing antibody response in Rhesus monkeys. J Virol 2001, 75: 8469-8477. 10.1128/JVI.75.18.8469-8477.2001PubMedPubMedCentralCrossRef Hooper JW, Custer DM, Thompson E, Schmaljohn CS: DNA vaccination with the Hantaan virus M gene protects Hamsters against three of four HFRS hantaviruses and elicits a high-titer neutralizing antibody response in Rhesus monkeys. J Virol 2001, 75: 8469-8477. 10.1128/JVI.75.18.8469-8477.2001PubMedPubMedCentralCrossRef
14.
go back to reference Spik KW, Badger C, Mathiessen I, Tjelle T, Hooper JW, Schmaljohn C: Mixing of M segment DNA vaccines to Hantaan virus and Puumala virus reduces their immunogenicity in hamsters. Vaccine 2008, 26: 5177-5181. 10.1016/j.vaccine.2008.03.097PubMedCrossRef Spik KW, Badger C, Mathiessen I, Tjelle T, Hooper JW, Schmaljohn C: Mixing of M segment DNA vaccines to Hantaan virus and Puumala virus reduces their immunogenicity in hamsters. Vaccine 2008, 26: 5177-5181. 10.1016/j.vaccine.2008.03.097PubMedCrossRef
15.
go back to reference Hu B, Tai A, Wang P: Immunization delivered by lentiviral vectors for cancer and infectious diseases. Immunol Rev 2011, 239: 45-61. 10.1111/j.1600-065X.2010.00967.xPubMedPubMedCentralCrossRef Hu B, Tai A, Wang P: Immunization delivered by lentiviral vectors for cancer and infectious diseases. Immunol Rev 2011, 239: 45-61. 10.1111/j.1600-065X.2010.00967.xPubMedPubMedCentralCrossRef
16.
go back to reference Pincha M, Sundarasetty BS, Stripecke R: Lentiviral vectors for immunization: an inflammatory field. Expert Rev Vaccines 2010, 9: 309-321. 10.1586/erv.10.9PubMedCrossRef Pincha M, Sundarasetty BS, Stripecke R: Lentiviral vectors for immunization: an inflammatory field. Expert Rev Vaccines 2010, 9: 309-321. 10.1586/erv.10.9PubMedCrossRef
17.
go back to reference Iglesias MC, Frenkiel MP, Mollier K, Souque P, Despres P, Charneau P: A single immunization with a minute dose of a lentiviral vector-based vaccine is highly effective at eliciting protective humoral immunity against West Nile virus. J Gene Med 2006, 8: 265-274. 10.1002/jgm.837PubMedCrossRef Iglesias MC, Frenkiel MP, Mollier K, Souque P, Despres P, Charneau P: A single immunization with a minute dose of a lentiviral vector-based vaccine is highly effective at eliciting protective humoral immunity against West Nile virus. J Gene Med 2006, 8: 265-274. 10.1002/jgm.837PubMedCrossRef
18.
go back to reference Cheng L-f, Bai L, Li K, Li P-y, Hu G, Yu L, Wu X-a, Xu Z-k, Zhang F-l: Detection of the specific antigens in the tissues of the C57BL/6 mice infected with Hantavirus. J Trop Med 2011, 11: 481-482. Cheng L-f, Bai L, Li K, Li P-y, Hu G, Yu L, Wu X-a, Xu Z-k, Zhang F-l: Detection of the specific antigens in the tissues of the C57BL/6 mice infected with Hantavirus. J Trop Med 2011, 11: 481-482.
19.
go back to reference Cho HW, Howard CR, Lee HW: Review of an inactivated vaccine against hantaviruses. Intervirology 2002, 45: 328-333. 10.1159/000067925PubMedCrossRef Cho HW, Howard CR, Lee HW: Review of an inactivated vaccine against hantaviruses. Intervirology 2002, 45: 328-333. 10.1159/000067925PubMedCrossRef
20.
go back to reference Zhang FL, Wu XA, Luo W, Bai WT, Liu Y, Yan Y, Wang HT, Xu ZK: The expression and genetic immunization of chimeric fragment of Hantaan virus M and S segments. Biochem Biophys Res Commun 2007, 354: 858-863. 10.1016/j.bbrc.2007.01.020PubMedCrossRef Zhang FL, Wu XA, Luo W, Bai WT, Liu Y, Yan Y, Wang HT, Xu ZK: The expression and genetic immunization of chimeric fragment of Hantaan virus M and S segments. Biochem Biophys Res Commun 2007, 354: 858-863. 10.1016/j.bbrc.2007.01.020PubMedCrossRef
21.
go back to reference Custer DM, Thompson E, Schmaljohn CS, Ksiazek TG, Hooper JW: Active and passive vaccination against hantavirus pulmonary syndrome with Andes virus M genome segment-based DNA vaccine. J Virol 2003, 77: 9894-9905. 10.1128/JVI.77.18.9894-9905.2003PubMedPubMedCentralCrossRef Custer DM, Thompson E, Schmaljohn CS, Ksiazek TG, Hooper JW: Active and passive vaccination against hantavirus pulmonary syndrome with Andes virus M genome segment-based DNA vaccine. J Virol 2003, 77: 9894-9905. 10.1128/JVI.77.18.9894-9905.2003PubMedPubMedCentralCrossRef
22.
go back to reference Hooper JW, Kamrud KI, Elgh F, Custer D, Schmaljohn CS: DNA vaccination with hantavirus M segment elicits neutralizing antibodies and protects against seoul virus infection. Virology 1999, 255: 269-278. 10.1006/viro.1998.9586PubMedCrossRef Hooper JW, Kamrud KI, Elgh F, Custer D, Schmaljohn CS: DNA vaccination with hantavirus M segment elicits neutralizing antibodies and protects against seoul virus infection. Virology 1999, 255: 269-278. 10.1006/viro.1998.9586PubMedCrossRef
23.
go back to reference Hooper JW, Ferro AM, Wahl-Jensen V: Immune serum produced by DNA vaccination protects hamsters against lethal respiratory challenge with Andes virus. J Virol 2008, 82: 1332-1338. 10.1128/JVI.01822-07PubMedPubMedCentralCrossRef Hooper JW, Ferro AM, Wahl-Jensen V: Immune serum produced by DNA vaccination protects hamsters against lethal respiratory challenge with Andes virus. J Virol 2008, 82: 1332-1338. 10.1128/JVI.01822-07PubMedPubMedCentralCrossRef
24.
go back to reference Arikawa J, Yao JS, Yoshimatsu K, Takashima I, Hashimoto N: Protective role of antigenic sites on the envelope protein of Hantaan virus defined by monoclonal antibodies. Arch Virol 1992, 126: 271-281. 10.1007/BF01309700PubMedCrossRef Arikawa J, Yao JS, Yoshimatsu K, Takashima I, Hashimoto N: Protective role of antigenic sites on the envelope protein of Hantaan virus defined by monoclonal antibodies. Arch Virol 1992, 126: 271-281. 10.1007/BF01309700PubMedCrossRef
25.
go back to reference Lawson ND, Stillman EA, Whitt MA, Rose JK: Recombinant vesicular stomatitis viruses from DNA. Proc Natl Acad Sci USA 1995, 92: 4477-4481. 10.1073/pnas.92.10.4477PubMedPubMedCentralCrossRef Lawson ND, Stillman EA, Whitt MA, Rose JK: Recombinant vesicular stomatitis viruses from DNA. Proc Natl Acad Sci USA 1995, 92: 4477-4481. 10.1073/pnas.92.10.4477PubMedPubMedCentralCrossRef
26.
go back to reference Whelan SP, Ball LA, Barr JN, Wertz GT: Efficient recovery of infectious vesicular stomatitis virus entirely from cDNA clones. Proc Natl Acad Sci USA 1995, 92: 8388-8392. 10.1073/pnas.92.18.8388PubMedPubMedCentralCrossRef Whelan SP, Ball LA, Barr JN, Wertz GT: Efficient recovery of infectious vesicular stomatitis virus entirely from cDNA clones. Proc Natl Acad Sci USA 1995, 92: 8388-8392. 10.1073/pnas.92.18.8388PubMedPubMedCentralCrossRef
27.
go back to reference Dull T, Zufferey R, Kelly M, Mandel RJ, Nguyen M, Trono D, Naldini L: A third-generation lentivirus vector with a conditional packaging system. J Virol 1998, 72: 8463-8471.PubMedPubMedCentral Dull T, Zufferey R, Kelly M, Mandel RJ, Nguyen M, Trono D, Naldini L: A third-generation lentivirus vector with a conditional packaging system. J Virol 1998, 72: 8463-8471.PubMedPubMedCentral
28.
go back to reference Zufferey R, Dull T, Mandel RJ, Bukovsky A, Quiroz D, Naldini L, Trono D: Self-inactivating lentivirus vector for safe and efficient in vivo gene delivery. J Virol 1998, 72: 9873-9880.PubMedPubMedCentral Zufferey R, Dull T, Mandel RJ, Bukovsky A, Quiroz D, Naldini L, Trono D: Self-inactivating lentivirus vector for safe and efficient in vivo gene delivery. J Virol 1998, 72: 9873-9880.PubMedPubMedCentral
29.
go back to reference Trono D: Lentiviral vectors: turning a deadly foe into a therapeutic agent. Gene Ther 2000, 7: 20-23. 10.1038/sj.gt.3301105PubMedCrossRef Trono D: Lentiviral vectors: turning a deadly foe into a therapeutic agent. Gene Ther 2000, 7: 20-23. 10.1038/sj.gt.3301105PubMedCrossRef
30.
go back to reference Pluta K, Kacprzak MM: Use of HIV as a gene transfer vector. Acta Biochim Pol 2009, 56: 531-595.PubMed Pluta K, Kacprzak MM: Use of HIV as a gene transfer vector. Acta Biochim Pol 2009, 56: 531-595.PubMed
31.
go back to reference Huret C, Desjardins D, Miyalou M, Levacher B, Amadoudji Zin M, Bonduelle O, Combadiere B, Dalba C, Klatzmann D, Bellier B: Recombinant retrovirus-derived virus-like particle-based vaccines induce hepatitis C virus-specific cellular and neutralizing immune responses in mice. Vaccine 2013, 31: 1540-1547. 10.1016/j.vaccine.2012.05.025PubMedCrossRef Huret C, Desjardins D, Miyalou M, Levacher B, Amadoudji Zin M, Bonduelle O, Combadiere B, Dalba C, Klatzmann D, Bellier B: Recombinant retrovirus-derived virus-like particle-based vaccines induce hepatitis C virus-specific cellular and neutralizing immune responses in mice. Vaccine 2013, 31: 1540-1547. 10.1016/j.vaccine.2012.05.025PubMedCrossRef
32.
go back to reference Lee BH, Yoshimatsu K, Araki K, Okumura M, Nakamura I, Arikawa J: A pseudotype vesicular stomatitis virus containing Hantaan virus envelope glycoproteins G1 and G2 as an alternative to hantavirus vaccine in mice. Vaccine 2006, 24: 2928-2934. 10.1016/j.vaccine.2005.12.040PubMedCrossRef Lee BH, Yoshimatsu K, Araki K, Okumura M, Nakamura I, Arikawa J: A pseudotype vesicular stomatitis virus containing Hantaan virus envelope glycoproteins G1 and G2 as an alternative to hantavirus vaccine in mice. Vaccine 2006, 24: 2928-2934. 10.1016/j.vaccine.2005.12.040PubMedCrossRef
33.
go back to reference Wang PZ, Huang CX, Zhang Y, Li ZD, Yo HT, Zhang Y, Jia ZS, Wang JP, Lian JQ, Sun YT, Bai XF: Analysis of the immune response to Hantaan virus nucleocapsid protein C-terminal-specific CD8(+) T cells in patients with hemorrhagic fever with renal syndrome. Viral Immunol 2009, 22: 253-260. 10.1089/vim.2008.0097PubMedCrossRef Wang PZ, Huang CX, Zhang Y, Li ZD, Yo HT, Zhang Y, Jia ZS, Wang JP, Lian JQ, Sun YT, Bai XF: Analysis of the immune response to Hantaan virus nucleocapsid protein C-terminal-specific CD8(+) T cells in patients with hemorrhagic fever with renal syndrome. Viral Immunol 2009, 22: 253-260. 10.1089/vim.2008.0097PubMedCrossRef
34.
go back to reference Wang M, Wang J, Zhu Y, Xu Z, Yang K, Yang A, Jin B: Cellular immune response to Hantaan virus nucleocapsid protein in the acute phase of hemorrhagic fever with renal syndrome: correlation with disease severity. J Infect Dis 2009, 199: 188-195. 10.1086/595834PubMedCrossRef Wang M, Wang J, Zhu Y, Xu Z, Yang K, Yang A, Jin B: Cellular immune response to Hantaan virus nucleocapsid protein in the acute phase of hemorrhagic fever with renal syndrome: correlation with disease severity. J Infect Dis 2009, 199: 188-195. 10.1086/595834PubMedCrossRef
35.
go back to reference Woo GJ, Chun EY, Kim KH, Kim W: Analysis of immune responses against nucleocapsid protein of the Hantaan virus elicited by virus infection or DNA vaccination. J Microbiol 2005, 43: 537-545.PubMed Woo GJ, Chun EY, Kim KH, Kim W: Analysis of immune responses against nucleocapsid protein of the Hantaan virus elicited by virus infection or DNA vaccination. J Microbiol 2005, 43: 537-545.PubMed
36.
go back to reference Wang M, Pennock DG, Spik KW, Schmaljohn CS: Epitope mapping studies with neutralizing and non-neutralizing monoclonal antibodies to the G1 and G2 envelope glycoproteins of Hantaan virus. Virology 1993, 197: 757-766. 10.1006/viro.1993.1652PubMedCrossRef Wang M, Pennock DG, Spik KW, Schmaljohn CS: Epitope mapping studies with neutralizing and non-neutralizing monoclonal antibodies to the G1 and G2 envelope glycoproteins of Hantaan virus. Virology 1993, 197: 757-766. 10.1006/viro.1993.1652PubMedCrossRef
37.
go back to reference Xu Z, Wei L, Wang L, Wang H, Jiang S: The in vitro and in vivo protective activity of monoclonal antibodies directed against Hantaan virus: potential application for immunotherapy and passive immunization. Biochem Biophys Res Commun 2002, 298: 552-558. 10.1016/S0006-291X(02)02491-9PubMedCrossRef Xu Z, Wei L, Wang L, Wang H, Jiang S: The in vitro and in vivo protective activity of monoclonal antibodies directed against Hantaan virus: potential application for immunotherapy and passive immunization. Biochem Biophys Res Commun 2002, 298: 552-558. 10.1016/S0006-291X(02)02491-9PubMedCrossRef
38.
go back to reference Liang MF, Song G, Hang CS, Li DX, Qiu HL: Preliminary study on structural protein of epidemic hemorrhagic fever virus using monoclonal antibodies. Chinese Journal of Virology 1989, 5: 217-224. Liang MF, Song G, Hang CS, Li DX, Qiu HL: Preliminary study on structural protein of epidemic hemorrhagic fever virus using monoclonal antibodies. Chinese Journal of Virology 1989, 5: 217-224.
39.
go back to reference Yoo DW, Kang CY: Nucleotide sequence of the M segment of the genomic RNA of Hantaan virus 76–118. Nucleic Acids Res 1987, 15: 6299-6300. 10.1093/nar/15.15.6299PubMedPubMedCentralCrossRef Yoo DW, Kang CY: Nucleotide sequence of the M segment of the genomic RNA of Hantaan virus 76–118. Nucleic Acids Res 1987, 15: 6299-6300. 10.1093/nar/15.15.6299PubMedPubMedCentralCrossRef
40.
go back to reference Li PY, Yu L, Wu XA, Bai WT, Li K, Wang HT, Hu G, Zhang L, Zhang FL, Xu ZK: Modification of the adenoviral transfer vector enhances expression of the Hantavirus fusion protein GnS0.7 and induces a strong immune response in C57BL/6 mice. J Virol Methods 2012, 179: 90-96. 10.1016/j.jviromet.2011.10.005PubMedCrossRef Li PY, Yu L, Wu XA, Bai WT, Li K, Wang HT, Hu G, Zhang L, Zhang FL, Xu ZK: Modification of the adenoviral transfer vector enhances expression of the Hantavirus fusion protein GnS0.7 and induces a strong immune response in C57BL/6 mice. J Virol Methods 2012, 179: 90-96. 10.1016/j.jviromet.2011.10.005PubMedCrossRef
41.
go back to reference Xu ZK, Zou HS, Wang LY, Wang HT, Xiao Y, Wang MX: Comparison of the micro cell culture test and the plaque assay for Hemorrhagic Fever with Renal Syndrome Virus and its neutralizing antibody. Chin J Exp Clin Virol 1995, 9: 126-128. Xu ZK, Zou HS, Wang LY, Wang HT, Xiao Y, Wang MX: Comparison of the micro cell culture test and the plaque assay for Hemorrhagic Fever with Renal Syndrome Virus and its neutralizing antibody. Chin J Exp Clin Virol 1995, 9: 126-128.
42.
go back to reference Li K, Li PY, Wu XA, Zhang L, Liu ZY, Yu L, Zhang L, Cheng LF, Bai WT, Zhang FL, Xu ZK: Induction of Hantaan virus-specific immune responses in C57BL/6 mice by immunization with a modified recombinant adenovirus containing the chimeric gene, GcS0.7. Int J Mol Med 2013. Epub ahead of print Li K, Li PY, Wu XA, Zhang L, Liu ZY, Yu L, Zhang L, Cheng LF, Bai WT, Zhang FL, Xu ZK: Induction of Hantaan virus-specific immune responses in C57BL/6 mice by immunization with a modified recombinant adenovirus containing the chimeric gene, GcS0.7. Int J Mol Med 2013. Epub ahead of print
Metadata
Title
A recombinant pseudotyped lentivirus expressing the envelope glycoprotein of Hantaan virus induced protective immunity in mice
Authors
Lan Yu
Wentao Bai
Xingan Wu
Liang Zhang
Lei Zhang
Puyuan Li
Fang Wang
Ziyu Liu
Fanglin Zhang
Zhikai Xu
Publication date
01-12-2013
Publisher
BioMed Central
Published in
Virology Journal / Issue 1/2013
Electronic ISSN: 1743-422X
DOI
https://doi.org/10.1186/1743-422X-10-301

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