Harris JB, LaRocque RC, Qadri F, Ryan ET, Calderwood SB, 2012. Cholera. Lancet 379: 2466–2476.
Zuckerman JN, Rombo L, Fisch A, 2007. The true burden and risk of cholera: implications for prevention and control. Lancet Infect Dis 7: 521–530.
Anonymous, 2010. Cholera vaccines: WHO position paper-recommendations. Vaccine 28: 4687–4688.
Stroeher UH, Karageorgos LE, Morona R, Manning PA, 1992. Serotype conversion in Vibrio cholerae O1. Proc Natl Acad Sci USA 89: 2566–2570.
Hisatsune K, Kondo S, Isshiki Y, Iguchi T, Haishima Y, 1993. Occurrence of 2-O-methyl-N-(3-deoxy-L-glycero-tetronyl)-D-perosamine (4-amino-4,6-dideoxy-D-manno-pyranose) in lipopolysaccharide from Ogawa but not from Inaba O forms of O1 Vibrio cholerae. Biochem Biophys Res Commun 190: 302–307.
Wang J, Villeneuve S, Zhang J, Lei P, Miller CE, Lafaye P, Nato F, Szu SC, Karpas A, Bystricky S, Robbins JB, Kovac P, Fournier JM, Glaudemans CP, 1998. On the antigenic determinants of the lipopolysaccharides of Vibrio cholerae O:1, serotypes Ogawa and Inaba. J Biol Chem 273: 2777–2783.
Ito T, Higuchi T, Hirobe M, Hiramatsu K, Yokota T, 1994. Identification of a novel sugar, 4-amino-4,6-dideoxy-2-O-methylmannose in the lipopolysaccharide of Vibrio cholerae O1 serotype Ogawa. Carbohydr Res 256: 113–128.
Harris AM, Chowdhury F, Begum YA, Khan AI, Faruque AS, Svennerholm AM, Harris JB, Ryan ET, Cravioto A, Calderwood SB, Qadri F, 2008. Shifting prevalence of major diarrheal pathogens in patients seeking hospital care during floods in 1998, 2004, and 2007 in Dhaka, Bangladesh. Am J Trop Med Hyg 79: 708–714.
Anh DD, Canh do G, Lopez AL, Thiem VD, Long PT, Son NH, Deen J, von Seidlein L, Carbis R, Han SH, Shin SH, Attridge S, Holmgren J, Clemens J, 2007. Safety and immunogenicity of a reformulated Vietnamese bivalent killed, whole-cell, oral cholera vaccine in adults. Vaccine 25: 1149–1155.
Mahalanabis D, Lopez AL, Sur D, Deen J, Manna B, Kanungo S, von Seidlein L, Carbis R, Han SH, Shin SH, Attridge S, Rao R, Holmgren J, Clemens J, Bhattacharya SK, 2008. A randomized, placebo-controlled trial of the bivalent killed, whole-cell, oral cholera vaccine in adults and children in a cholera endemic area in Kolkata, India. PLoS ONE 3: e2323.
Saha A, Chowdhury MI, Khanam F, Bhuiyan MS, Chowdhury F, Khan AI, Khan IA, Clemens J, Ali M, Cravioto A, Qadri F, 2011. Safety and immunogenicity study of a killed bivalent (O1 and O139) whole-cell oral cholera vaccine Shanchol, in Bangladeshi adults and children as young as 1 year of age. Vaccine 29: 8285–8292.
Sur D, Lopez AL, Kanungo S, Paisley A, Manna B, Ali M, Niyogi SK, Park JK, Sarkar B, Puri MK, Kim DR, Deen JL, Holmgren J, Carbis R, Rao R, Nguyen TV, Donner A, Ganguly NK, Nair GB, Bhattacharya SK, Clemens JD, 2009. Efficacy and safety of a modified killed-whole-cell oral cholera vaccine in India: an interim analysis of a cluster-randomized, double-blind, placebo-controlled trial. Lancet 374: 1694–1702.
Kanungo S, Paisley A, Lopez AL, Bhattacharya M, Manna B, Kim DR, Han SH, Attridge S, Carbis R, Rao R, Holmgren J, Clemens JD, Sur D, 2009. Immune responses following one and two doses of the reformulated, bivalent, killed, whole-cell, oral cholera vaccine among adults and children in Kolkata, India: a randomized, placebo-controlled trial. Vaccine 27: 6887–6893.
Clemens JD, van Loon F, Sack DA, Rao MR, Ahmed F, Chakrabort YJ, Kay BA, Khan MR, Yunus MD, Harris JR, Clemens JD, Rao MR, Svennerholm A-M, Holmgren J, 1991. Biotype as determinant of natural immunizing effect of cholera. Lancet 337: 883–884.
Sur D, Kanungo S, Sah B, Manna B, Ali M, Paisley AM, Niyogi SK, Park JK, Sarkar B, Puri MK, Kim DR, Deen JL, Holmgren J, Carbis R, Rao R, Nguyen TV, Han SH, Attridge S, Donner A, Ganguly NK, Bhattacharya SK, Nair GB, Clemens JD, Lopez AL, 2011. Efficacy of a low-cost, inactivated whole-cell oral cholera vaccine: results from 3 years of follow-up of a randomized, controlled trial. PLoS Negl Trop Dis 5: e1289.
Ali M, Emch M, Park JK, Yunus M, Clemens J, 2011. Natural cholera infection-derived immunity in an endemic setting. J Infect Dis 204: 912–918.
Levine MM, Black RE, Clements ML, Cisneros L, Nalin DR, Young CR, 1981. Duration of infection-derived immunity to cholera. J Infect Dis 143: 818–820.
Albert MJ, Alam K, Rahman AS, Huda S, Sack RB, 1994. Lack of cross-protection against diarrhea due to Vibrio cholerae O1 after oral immunization of rabbits with V. cholerae O139 Bengal. J Infect Dis 169: 709–710.
Waldor MK, Colwell R, Mekalanos JJ, 1994. The Vibrio cholerae O139 serogroup antigen includes an O-antigen capsule and lipopolysaccharide virulence determinants. Proc Natl Acad Sci USA 91: 11388–11392.
Qadri F, Wenneras C, Albert MJ, Hossain J, Mannoor K, Begum YA, Mohi G, Salam MA, Sack RB, Svennerholm AM, 1997. Comparison of immune responses in patients infected with Vibrio cholerae O139 and O1. Infect Immun 65: 3571–3576.
Xu P, Alam MM, Kalsy A, Charles RC, Calderwood SB, Qadri F, Ryan ET, Kovac P, 2011. Simple, direct conjugation of bacterial O-SP-core antigens to proteins: development of cholera conjugate vaccines. Bioconjug Chem 22: 2179–2185.
Cox AD, Brisson JR, Varma V, Perry MB, 1996. Structural analysis of the lipopolysaccharide from Vibrio cholerae O139. Carbohydr Res 290: 43–58.
Cox AD, Perry MB, 1996. Structural analysis of the O-antigen-core region of the lipopolysaccharide from Vibrio cholerae O139. Carbohydr Res 290: 59–65.
Vinogradov EV, Bock K, Holst O, Brade H, 1995. The structure of the lipid A-core region of the lipopolysaccharides from Vibrio cholerae O1 smooth strain 569B (Inaba) and rough mutant strain 95R (Ogawa). Eur J Biochem 233: 152–158.
Hankins JV, Madsen JA, Giles DK, Brodbelt JS, Trent MS, 2012. Amino acid addition to Vibrio cholerae LPS establishes a link between surface remodeling in Gram-positive and Gram-negative bacteria. Proc Natl Acad Sci USA 109: 8722–8727.
Johnson RA, Uddin T, Aktar A, Mohasin M, Alam MM, Chowdhury F, Harris JB, LaRocque RC, Bufano MK, Yu Y, Wu-Freeman Y, Leung DT, Sarracino D, Krastins B, Charles RC, Xu P, Kovac P, Calderwood SB, Qadri F, Ryan ET, 2012. Comparison of immune responses to the O-specific polysaccharide and lipopolysaccharide of Vibrio cholerae O1 in Bangladeshi adult patients with cholera. Clin Vaccine Immunol 19: 1712–1721.
Leung DT, Uddin T, Xu P, Aktar A, Johnson RA, Rahman MA, Alam MM, Bufano MK, Eckhoff G, Wu-Freeman Y, Yu Y, Sultana T, Khanam F, Saha A, Chowdhury F, Khan AI, Charles RC, Larocque RC, Harris JB, Calderwood SB, Kovac P, Qadri F, Ryan ET, 2013. Immune responses to the O-specific polysaccharide antigen in children receiving a killed oral cholera vaccine compared to responses following natural cholera infection in Bangladesh. Clin Vaccine Immunol 20: 780.
Alam MM, Riyadh MA, Fatema K, Rahman MA, Akhtar N, Ahmed T, Chowdhury MI, Chowdhury F, Calderwood SB, Harris JB, Ryan ET, Qadri F, 2011. Antigen-specific memory B-cell responses in Bangladeshi adults after one- or two-dose oral killed cholera vaccination and comparison with responses in patients with naturally acquired cholera. Clin Vaccine Immunol 18: 844–850.
Qadri F, Asaduzzaman M, Wenneras C, Mohi G, Albert MJ, Abdus Salam M, Sack RB, Jertborn M, McGhee JR, Sack DA, Holmgren J, 2000. Enterotoxin-specific immunoglobulin E responses in humans after infection or vaccination with diarrhea-causing enteropathogens. Infect Immun 68: 6077–6081.
Qadri F, Raqib R, Ahmed F, Rahman T, Wenneras C, Das SK, Alam NH, Mathan MM, Svennerholm AM, 2002. Increased levels of inflammatory mediators in children and adults infected with Vibrio cholerae O1 and O139. Clin Diagn Lab Immunol 9: 221–229.
Jayasekera CR, Harris JB, Bhuiyan S, Chowdhury F, Khan AI, Faruque AS, Larocque RC, Ryan ET, Ahmed R, Qadri F, Calderwood SB, 2008. Cholera toxin-specific memory B cell responses are induced in patients with dehydrating diarrhea caused by Vibrio cholerae O1. J Infect Dis 198: 1055–1061.
Harris AM, Bhuiyan MS, Chowdhury F, Khan AI, Hossain A, Kendall EA, Rahman A, LaRocque RC, Wrammert J, Ryan ET, Qadri F, Calderwood SB, Harris JB, 2009. Antigen-specific memory B-cell responses to Vibrio cholerae O1 infection in Bangladesh. Infect Immun 77: 3850–3856.
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Qadri F, Ryan ET, Faruque AS, Ahmed F, Khan AI, Islam MM, Akramuzzaman SM, Sack DA, Calderwood SB, 2003. Antigen-specific immunoglobulin A antibodies secreted from circulating B cells are an effective marker for recent local immune responses in patients with cholera: comparison to antibody-secreting cell responses and other immunological markers. Infect Immun 71: 4808–4814.
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Protective immunity to cholera is serogroup specific, and serogrouping is defined by the O-specific polysaccharide (OSP) of lipopolysaccharide (LPS). We characterized OSP-specific immune responses in adult recipients of an oral killed cholera vaccine (OCV WC-rBS) and compared these with responses in patients with cholera caused by Vibrio cholerae O1 Ogawa. Although vaccinees developed plasma immunoglobulin G (IgG), IgM, IgA antibody and antibody secreting cell (ASC, marker of mucosal response) to Ogawa OSP and LPS 7 days after vaccination, responses were significantly lower than that which occurred after cholera. Similarly, patients recovering from cholera had detectable IgA, IgM, and IgG memory B cell (MBC) responses against OSP and LPS on Day 30 and Day 90, whereas vaccinees only developed IgG responses to OSP 30 days after the second immunization. The markedly lower ASC and MBC responses to OSP and LPS observed among vaccinees might explain, in part, the lower protection of an OCV compared with natural infection.
Financial support: This research was supported by the icddr,b, by the Intramural Research Program of the National Institutes of Health, NIDDK, and extramural grants from the National Institutes of Health, including the National Institute of Allergy and Infectious Diseases (U01 AI058935 [S.B.C., E.T.R.], R03 AI063079 [F.Q.], U01 AI077883 and AI106878 [E.T.R.]), K08 AI089721 [R.C.C.], K08AI100923 [D.T.L.]) and the Fogarty International Center, Training Grant in Vaccine Development and Public Health (TW005572 [T.U., M.M.A., R.R., and F.Q.]), Career Development Awards (K01 TW07409 [J.B.H.] and K01 TW07144 [R.C.L.], and a Fogarty International Clinical Research Scholars Award (R24 TW007988 [T.U., R.A.J.]), as well as by Swedish Sida grant INT-ICDDR,B-HN-01-AV (F.Q.), a Physician Scientist Early Career Award from the Howard Hughes Medical Institute (R.C.L.), a Postdoctoral Fellowship in Tropical Infectious Diseases from the American Society for Tropical Medicine and Hygiene - Burroughs Wellcome Fund (D.T.L.), and a Thrasher Research Fund Early Career Award (D.T.L.).
Authors' addresses: Taher Uddin, Amena Aktar, Russell A. Johnson, M. Arifur Rahman, Sadia Afrin, Aklima Akter, Mohammad Murshid Alam, Fahima Chowdhury, Ashraful I. Khan, and Firdausi Qadri, International Centre For Diarrhoeal Disease Research, Bangladesh (icddr,b) - Immunology Laboratory, Dhaka, Bangladesh, E-mails: taher_imm@icddrb.org, bio_amn015@yahoo.com, russell.a.johnson@gmail.com, marifur@icddrb.org, sadia_afrin89@yahoo.com, aklima17@gmail.com, shafiul@icddrb.org, fchowdhury@icddrb.org, ashrafk@icddrb.org, and fqadri@icddrb.org. Peng Xu and Pavol Kováč, National Institutes of Health - NIDDK, LBC, Bethesda, MD, E-mails: xup3@mail.nih.gov and Kovac@mail.nih.gov. Daniel T. Leung, Meagan K. Bufano, Yanan Yu, and Ying Wu-Freeman, Massachusetts General Hospital - Infectious Diseases, Boston, MA, E-mails: dleung@partners.org, MBUFANO@partners.org, YYVAUGHN@PARTNERS.ORG, and YWUFREEMAN@PARTNERS.ORG. Atiqur Rahman, University of Dhaka - Department of Biochemistry and Molecular Biology, Dhaka, Bangladesh, E-mail: atique303@gmail.com. Rasheduzzaman Rashu, International Centre For Diarrhoeal Disease Research, Bangladesh (icddr,b) - Immunology Laboratory, Dhaka, Bangladesh, and Massachusetts General Hospital - Infectious Diseases, Boston, MA, E-mail: rashedimm@yahoo.com. Jason B. Harris, Department of Pediatrics, Harvard Medical School, Boston, MA, and Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, E-mail: jbharris@partners.org. Regina C. LaRocque and Richelle C. Charles, Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, and Department of Medicine, Harvard Medical School, Boston, MA, E-mails: RCLAROCQUE@PARTNERS.ORG and RCCHARLES@PARTNERS.ORG. Stephen Calderwood, Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, Department of Medicine, Harvard Medical School, Boston, MA, and Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA, E-mail: SCALDERWOOD@PARTNERS.ORG. Edward T. Ryan, Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, Department of Medicine, Harvard Medical School, Boston, MA, and Department of Immunology and Infectious Diseases, Harvard School of Public Health, Boston, MA, E-mail: ETRYAN@PARTNERS.ORG.
Harris JB, LaRocque RC, Qadri F, Ryan ET, Calderwood SB, 2012. Cholera. Lancet 379: 2466–2476.
Zuckerman JN, Rombo L, Fisch A, 2007. The true burden and risk of cholera: implications for prevention and control. Lancet Infect Dis 7: 521–530.
Anonymous, 2010. Cholera vaccines: WHO position paper-recommendations. Vaccine 28: 4687–4688.
Stroeher UH, Karageorgos LE, Morona R, Manning PA, 1992. Serotype conversion in Vibrio cholerae O1. Proc Natl Acad Sci USA 89: 2566–2570.
Hisatsune K, Kondo S, Isshiki Y, Iguchi T, Haishima Y, 1993. Occurrence of 2-O-methyl-N-(3-deoxy-L-glycero-tetronyl)-D-perosamine (4-amino-4,6-dideoxy-D-manno-pyranose) in lipopolysaccharide from Ogawa but not from Inaba O forms of O1 Vibrio cholerae. Biochem Biophys Res Commun 190: 302–307.
Wang J, Villeneuve S, Zhang J, Lei P, Miller CE, Lafaye P, Nato F, Szu SC, Karpas A, Bystricky S, Robbins JB, Kovac P, Fournier JM, Glaudemans CP, 1998. On the antigenic determinants of the lipopolysaccharides of Vibrio cholerae O:1, serotypes Ogawa and Inaba. J Biol Chem 273: 2777–2783.
Ito T, Higuchi T, Hirobe M, Hiramatsu K, Yokota T, 1994. Identification of a novel sugar, 4-amino-4,6-dideoxy-2-O-methylmannose in the lipopolysaccharide of Vibrio cholerae O1 serotype Ogawa. Carbohydr Res 256: 113–128.
Harris AM, Chowdhury F, Begum YA, Khan AI, Faruque AS, Svennerholm AM, Harris JB, Ryan ET, Cravioto A, Calderwood SB, Qadri F, 2008. Shifting prevalence of major diarrheal pathogens in patients seeking hospital care during floods in 1998, 2004, and 2007 in Dhaka, Bangladesh. Am J Trop Med Hyg 79: 708–714.
Anh DD, Canh do G, Lopez AL, Thiem VD, Long PT, Son NH, Deen J, von Seidlein L, Carbis R, Han SH, Shin SH, Attridge S, Holmgren J, Clemens J, 2007. Safety and immunogenicity of a reformulated Vietnamese bivalent killed, whole-cell, oral cholera vaccine in adults. Vaccine 25: 1149–1155.
Mahalanabis D, Lopez AL, Sur D, Deen J, Manna B, Kanungo S, von Seidlein L, Carbis R, Han SH, Shin SH, Attridge S, Rao R, Holmgren J, Clemens J, Bhattacharya SK, 2008. A randomized, placebo-controlled trial of the bivalent killed, whole-cell, oral cholera vaccine in adults and children in a cholera endemic area in Kolkata, India. PLoS ONE 3: e2323.
Saha A, Chowdhury MI, Khanam F, Bhuiyan MS, Chowdhury F, Khan AI, Khan IA, Clemens J, Ali M, Cravioto A, Qadri F, 2011. Safety and immunogenicity study of a killed bivalent (O1 and O139) whole-cell oral cholera vaccine Shanchol, in Bangladeshi adults and children as young as 1 year of age. Vaccine 29: 8285–8292.
Sur D, Lopez AL, Kanungo S, Paisley A, Manna B, Ali M, Niyogi SK, Park JK, Sarkar B, Puri MK, Kim DR, Deen JL, Holmgren J, Carbis R, Rao R, Nguyen TV, Donner A, Ganguly NK, Nair GB, Bhattacharya SK, Clemens JD, 2009. Efficacy and safety of a modified killed-whole-cell oral cholera vaccine in India: an interim analysis of a cluster-randomized, double-blind, placebo-controlled trial. Lancet 374: 1694–1702.
Kanungo S, Paisley A, Lopez AL, Bhattacharya M, Manna B, Kim DR, Han SH, Attridge S, Carbis R, Rao R, Holmgren J, Clemens JD, Sur D, 2009. Immune responses following one and two doses of the reformulated, bivalent, killed, whole-cell, oral cholera vaccine among adults and children in Kolkata, India: a randomized, placebo-controlled trial. Vaccine 27: 6887–6893.
Clemens JD, van Loon F, Sack DA, Rao MR, Ahmed F, Chakrabort YJ, Kay BA, Khan MR, Yunus MD, Harris JR, Clemens JD, Rao MR, Svennerholm A-M, Holmgren J, 1991. Biotype as determinant of natural immunizing effect of cholera. Lancet 337: 883–884.
Sur D, Kanungo S, Sah B, Manna B, Ali M, Paisley AM, Niyogi SK, Park JK, Sarkar B, Puri MK, Kim DR, Deen JL, Holmgren J, Carbis R, Rao R, Nguyen TV, Han SH, Attridge S, Donner A, Ganguly NK, Bhattacharya SK, Nair GB, Clemens JD, Lopez AL, 2011. Efficacy of a low-cost, inactivated whole-cell oral cholera vaccine: results from 3 years of follow-up of a randomized, controlled trial. PLoS Negl Trop Dis 5: e1289.
Ali M, Emch M, Park JK, Yunus M, Clemens J, 2011. Natural cholera infection-derived immunity in an endemic setting. J Infect Dis 204: 912–918.
Levine MM, Black RE, Clements ML, Cisneros L, Nalin DR, Young CR, 1981. Duration of infection-derived immunity to cholera. J Infect Dis 143: 818–820.
Albert MJ, Alam K, Rahman AS, Huda S, Sack RB, 1994. Lack of cross-protection against diarrhea due to Vibrio cholerae O1 after oral immunization of rabbits with V. cholerae O139 Bengal. J Infect Dis 169: 709–710.
Waldor MK, Colwell R, Mekalanos JJ, 1994. The Vibrio cholerae O139 serogroup antigen includes an O-antigen capsule and lipopolysaccharide virulence determinants. Proc Natl Acad Sci USA 91: 11388–11392.
Qadri F, Wenneras C, Albert MJ, Hossain J, Mannoor K, Begum YA, Mohi G, Salam MA, Sack RB, Svennerholm AM, 1997. Comparison of immune responses in patients infected with Vibrio cholerae O139 and O1. Infect Immun 65: 3571–3576.
Xu P, Alam MM, Kalsy A, Charles RC, Calderwood SB, Qadri F, Ryan ET, Kovac P, 2011. Simple, direct conjugation of bacterial O-SP-core antigens to proteins: development of cholera conjugate vaccines. Bioconjug Chem 22: 2179–2185.
Cox AD, Brisson JR, Varma V, Perry MB, 1996. Structural analysis of the lipopolysaccharide from Vibrio cholerae O139. Carbohydr Res 290: 43–58.
Cox AD, Perry MB, 1996. Structural analysis of the O-antigen-core region of the lipopolysaccharide from Vibrio cholerae O139. Carbohydr Res 290: 59–65.
Vinogradov EV, Bock K, Holst O, Brade H, 1995. The structure of the lipid A-core region of the lipopolysaccharides from Vibrio cholerae O1 smooth strain 569B (Inaba) and rough mutant strain 95R (Ogawa). Eur J Biochem 233: 152–158.
Hankins JV, Madsen JA, Giles DK, Brodbelt JS, Trent MS, 2012. Amino acid addition to Vibrio cholerae LPS establishes a link between surface remodeling in Gram-positive and Gram-negative bacteria. Proc Natl Acad Sci USA 109: 8722–8727.
Johnson RA, Uddin T, Aktar A, Mohasin M, Alam MM, Chowdhury F, Harris JB, LaRocque RC, Bufano MK, Yu Y, Wu-Freeman Y, Leung DT, Sarracino D, Krastins B, Charles RC, Xu P, Kovac P, Calderwood SB, Qadri F, Ryan ET, 2012. Comparison of immune responses to the O-specific polysaccharide and lipopolysaccharide of Vibrio cholerae O1 in Bangladeshi adult patients with cholera. Clin Vaccine Immunol 19: 1712–1721.
Leung DT, Uddin T, Xu P, Aktar A, Johnson RA, Rahman MA, Alam MM, Bufano MK, Eckhoff G, Wu-Freeman Y, Yu Y, Sultana T, Khanam F, Saha A, Chowdhury F, Khan AI, Charles RC, Larocque RC, Harris JB, Calderwood SB, Kovac P, Qadri F, Ryan ET, 2013. Immune responses to the O-specific polysaccharide antigen in children receiving a killed oral cholera vaccine compared to responses following natural cholera infection in Bangladesh. Clin Vaccine Immunol 20: 780.
Alam MM, Riyadh MA, Fatema K, Rahman MA, Akhtar N, Ahmed T, Chowdhury MI, Chowdhury F, Calderwood SB, Harris JB, Ryan ET, Qadri F, 2011. Antigen-specific memory B-cell responses in Bangladeshi adults after one- or two-dose oral killed cholera vaccination and comparison with responses in patients with naturally acquired cholera. Clin Vaccine Immunol 18: 844–850.
Qadri F, Asaduzzaman M, Wenneras C, Mohi G, Albert MJ, Abdus Salam M, Sack RB, Jertborn M, McGhee JR, Sack DA, Holmgren J, 2000. Enterotoxin-specific immunoglobulin E responses in humans after infection or vaccination with diarrhea-causing enteropathogens. Infect Immun 68: 6077–6081.
Qadri F, Raqib R, Ahmed F, Rahman T, Wenneras C, Das SK, Alam NH, Mathan MM, Svennerholm AM, 2002. Increased levels of inflammatory mediators in children and adults infected with Vibrio cholerae O1 and O139. Clin Diagn Lab Immunol 9: 221–229.
Jayasekera CR, Harris JB, Bhuiyan S, Chowdhury F, Khan AI, Faruque AS, Larocque RC, Ryan ET, Ahmed R, Qadri F, Calderwood SB, 2008. Cholera toxin-specific memory B cell responses are induced in patients with dehydrating diarrhea caused by Vibrio cholerae O1. J Infect Dis 198: 1055–1061.
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