The utility of diagnostic tests for enteric fever in endemic locations

References

• Bhan MK, Bahl R, Bhatnagar S. Typhoid and paratyphoid fever. Lancet366, 749–762 (2005).
   PubMed Web of Science ®Google Scholar
• Connor BA, Schwartz E. Typhoid and paratyphoid fever in travellers. Lancet Infect. Dis.5, 623–628 (2005).
   PubMed Web of Science ®Google Scholar
• Crump JA, Luby SP, Mintz ED. The global burden of typhoid fever. Bull. World Health Organ.82, 346–353 (2004).
   PubMed Web of Science ®Google Scholar
• Baker S, Favorov M, Dougan G. Searching for the elusive typhoid diagnostic. BMC Infect. Dis.10, 45 (2010).
   PubMed Web of Science ®Google Scholar
• Crump JA, Mintz ED. Global trends in typhoid and paratyphoid fever. Clin. Infect. Dis.50, 241–246 (2010).
   PubMed Web of Science ®Google Scholar
• Mweu E, English M. Typhoid fever in children in Africa. Trop. Med. Int. Health13, 1–9 (2008).
   PubMed Web of Science ®Google Scholar
• Graham S. Nontyphoid salmonellosis in adults. Curr. Opin. Infect. Dis.23, 409–414 (2010).
   PubMed Web of Science ®Google Scholar
• Raffatellu M, Wilson RP, Winter SE, Bäumler A. Clinical pathogenesis of typhoid fever. J. Infect. Dev. Ctries2, 260–266 (2008).
   PubMed Web of Science ®Google Scholar
• Levine MM, Black RE, Lanata C. Precise estimation of the number of chronic carriers of Salmonella Typhi in Santiago, Chile, an endemic area. J. Infect. Dis.146, 724–726 (1982).
   PubMed Web of Science ®Google Scholar
• Khatri NS, Maskey P, Pudel S et al. Gallbladder carriage of Salmonella Paratyphi A may be an important factor in the increasing incidence of this infection in south Asia. Ann. Intern. Med.150, 567–568 (2009).
   PubMed Web of Science ®Google Scholar
• Tsolis RM et al. From bench to bedside: stealth of enteroinvasive pathogens. Nature Rev. Microbiol.6, 883–892 (2008).
   PubMed Web of Science ®Google Scholar
• Andrews-Polymenis HL, Bäumler A, McCormick BA, Fang FC. Taming the elephant: Salmonella biology, pathogenesis and prevention. Infect. Immun.78, 2356–2369 (2010).
   PubMed Web of Science ®Google Scholar
• Sarma VN, Malaviya AN, Kumar R, Ghai OP, Bakhtary MM. Development of immune response during typhoid fever in man. Clin. Exp. Immunol.28, 35–39 (1977).
   PubMed Web of Science ®Google Scholar
• Sztein MB. Cell-mediated immunity and antibody responses elicited by attenuated Salmonella enterica serovar Typhi strains used as live oral vaccines in humans. Clin. Infect. Dis.45(Suppl. 1), S15–S19 (2007).
   PubMed Web of Science ®Google Scholar
• Sinha A, Sazawal S, Kumar R et al. Typhoid fever in children aged less than 5 years. Lancet354, 734–737 (1999).
   PubMed Web of Science ®Google Scholar
• Brooks WA, Hossain A, Goswami D et al. Bacteremic typhoid fever in an urban slum, Bangladesh. Emerg. Infect. Dis.11, 326–329 (2005).
   PubMed Web of Science ®Google Scholar
• Ochiai RL, Acosta CJ, Danovaro-Holliday MC et al. A study of typhoid fever in five Asian countries: disease burden and implications for control. Bull. World Helath Organ.86, 260–268 (2008).
   PubMed Web of Science ®Google Scholar
• Karkey A, Arjyal A, Anders KL et al. The burden and characteristics of enteric fever at a healthcare facility in a densely populated area of Kathmandu. Plos ONE5, e13988 (2010).
   Google Scholar
• Ochiai RL, Wang XY, von Siedlein L et al. Salmonella Paratyphi A rates, Asia. Emerg. Infect. Dis.11, 1764–1766 (2005).
   PubMed Web of Science ®Google Scholar
• Dong BQ, Yang J, Wang XY et al. Trends and disease burden of enteric fever in Guanxi Province, China, 1994–2004. Bull. World Health Organ.88, 689–696 (2010).
   PubMed Web of Science ®Google Scholar
• Gasem MH, Dolmans WMV, Keuter M, Djokomoeljanto R. Poor food hygiene and housing as risk factors for typhoid fever in Semarang, Indonesia. Trop. Med. Int. Health6, 484–490 (2001)
   PubMed Web of Science ®Google Scholar
• Ram PK, Naheed A, Brooks WA et al. Risk factors for typhoid fever in a slum in Dhaka, Bangladesh. Epidemiol. Infect.135, 458–465 (2007).
   PubMed Web of Science ®Google Scholar
• Lewis MD, Serichantalergs O, Pitarangsi C et al. Typhoid fever: a massive, single-point source multidrug-resistant outbreak in Nepal. Clin. Infect. Dis.40, 554–561 (2005).
   PubMed Web of Science ®Google Scholar
• Parry CM, Hien TT, Dougan G et al. Typhoid fever. N. Engl. J. Med.347, 1770–1782 (2002).
   PubMed Web of Science ®Google Scholar
• Luxemburger C, Duc CM, Lanh MN et al. Risk factors for typhoid fever in the Mekong delta, southern Vietnam: a case–control study. Trans. R. Soc. Trop. Med. Hyg.95, 19–23 (2001).
   PubMed Web of Science ®Google Scholar
• World Health Organization. Typhoid vaccines: WHO position paper. Wkly Epidemiol. Rec.83, 49–60 (2008).
   PubMedGoogle Scholar
• Bhutta ZA. Current concepts in the diagnosis and treatment of typhoid fever. BMJ33, 78–82 (2006).
   Google Scholar
• Maskey AP, Day JN, Tuan PQ et al. Salmonella enterica serovar Paratyphi A and S. enterica serovar Typhi cause indistinguishable clinical syndromes in Kathmandu, Nepal. Clin. Infect. Dis.42, 1247–1253 (2006).
   PubMed Web of Science ®Google Scholar
• Siddiqui FJ, Rabbani F, Hasan R, Nizami SQ, Bhutta ZA. Typhoid fever in children: some epidemiological considerations in Karachi, Pakistan. Int. J. Infect. Dis.10, 215–222 (2006).
   PubMed Web of Science ®Google Scholar
• Van den Bergh ETAM, Gasem MH, Keuter M, Dolmans MV. Outcome in three groups of patients with typhoid fever in Indonesia between 1948 and 1990. Trop. Med. Int. Health4, 211–215 (1999).
   PubMed Web of Science ®Google Scholar
• Ross IN, Abraham T. Predicting enteric fever without bacteriological culture results. Trans. R. Soc. Trop. Med. Hyg.81, 374–377 (1987).
   PubMed Web of Science ®Google Scholar
• Richens J, Smith T, Mylius T, Spooner V. An algorithm for the clinical differentiation of malaria and typhoid: a preliminary communication. Papua New Guinea Med. J.35, 298–302 (1992).
   PubMedGoogle Scholar
• Vollard AM, Ali S, Widjaja S et al. Identification of typhoid and paratyphoid fever cases at presentation in outpatient clinics in Jakarta, Indonesia. Trans. R. Soc. Trop. Med. Hyg.99, 440–450 (2005).
   PubMed Web of Science ®Google Scholar
• Hosoglu S, Geyik MF, Akalin S, Ayaz C, Kokoglu OF, Loab M. A simple validated prediction rule to diagnose typhoid fever in Turkey. Trans. R. Soc. Trop. Med. Hyg.100, 1068–1074, (2006).
   PubMed Web of Science ®Google Scholar
• Chuang CH, Su LH, Perera J et al. Surveillance of antimicrobial resistance of Salmonella enterica serotype Typhi in seven Asian countries. Epidemiol. Infect.137, 266–269 (2009).
   PubMed Web of Science ®Google Scholar
• Chau TT, Campbell JI, Galinso CM et al. Antimicrobial drug resistance of Salmonella enteric serovar Typhi in Asia and molecular mechanism of reduced susceptibility to fluoroquinolones. Antimicrob. Agents Chemother.51, 4315–4323 (2007).
   PubMed Web of Science ®Google Scholar
• Kariuki S, Revathi G, Kiiru J et al. Typhoid fever in Kenya is associated with a dominant multidrug-resistant Salmonella enteric serovar Typhi haplotype that is also widespread in Asia. J. Clin. Microbiol.48, 2171–2176 (2010).
   PubMed Web of Science ®Google Scholar
• World Health Organization. Background document: the diagnosis, treatment and prevention of typhoid fever. WHO/V&B/03.07. WHO, Geneva, Switzerland (2003).
   Google Scholar
• Gordon MA, Graham SM, Walsh AL et al. Epidemics of invasive Salmonella enterica serovar Enteritidis and Salmonella enterica serovar Typhimurium associated with multidrug resistance among adults and children in Malawi. Clin. Infect. Dis.46, 963–969 (2008).
   PubMed Web of Science ®Google Scholar
• Roumagnac P, Weill FX, Dolecek C et al. Evolutionary history of Salmonella Typhi. Science314, 1301–1304 (2006).
   PubMed Web of Science ®Google Scholar
• Holt KE, Baker S, Dongol S et al. High-throughput bacterial SNP typing identifies distinct clusters of Salmonella Typhi causing typhoid in Nepalese children. BMC Infect. Dis.10, 144 (2010).
   PubMed Web of Science ®Google Scholar
• Gilman RH, Terminel M, Levine MM, Hernandez-Mendoza P, Hornick RB. Relative efficacy of blood, urine, rectal swab, bone marrow, and rose-spot cultures for recovery of Salmonella Typhi in typhoid fever. Lancet1(7918), 1211–1213 (1975).
   PubMed Web of Science ®Google Scholar
• Guerra-Caceres JG, Gotuzzo-Herencia E, Crosby-Dagninio E, Miro-Quesada M, Carrillo-Parodi C. Diagnostic value of bone marrow culture in typhoid fever. Trans. R. Soc. Trop. Med. Hyg.73, 680–683 (1979).
   PubMed Web of Science ®Google Scholar
• Hoffman SL, Punjabi NH, Rockhill RC, Sutomo A, Rivai AR, Pulungsih SP. Duodenal string-capsule culture compared with bone marrow, blood and rectal-swab cultures for diagnosing typhoid and paratyphoid fever. J. Infect. Dis.149, 157–161 (1984).
   PubMed Web of Science ®Google Scholar
• Vallenas C, Hernandez H, Kay B, Black R, Gotuzzo E. Efficacy of bone marrow, blood, stool and duodenal contents cultures for bacteriologic confirmation of typhoid fever in children. Pediatr. Infect. Dis.4, 496–498 (1985).
   PubMedGoogle Scholar
• Hoffman SL, Edman DC, Punjabi NH et al. Bone marrow aspirate culture superior to streptokinase clot culture and 8ml 1:10 blood-to-broth ratio blood culture for diagnosis of typhoid fever. Am. J. Trop. Med. Hyg.35, 836–839 (1986).
   PubMed Web of Science ®Google Scholar
• Farooqui BJ, Khurshid M, Ashfaq MK, Khan MA. Comparative yield of Salmonella Typhi from blood and bone marrow cultures in patients with fever of unknown origin. J. Clin. Pathol.44, 258–259 (1991).
   PubMed Web of Science ®Google Scholar
• Akoh JA. Relative sensitivity of blood and bone marrow cultures in typhoid fever. Trop. Doctor21, 174–176 (1991).
   PubMed Web of Science ®Google Scholar
• Gasem MH, Dolmans WM, Isbandrio BB, Wahyono H, Keuter M, Djokomoeljanto R. Culture of Salmonella Typhi and Salmonella Paratyphi from blood and bone marrow in suspected typhoid fever. Trop. Geogr. Med.47, 164–167 (1995).
   PubMedGoogle Scholar
• Coleman W, Buxton BH. The bacteriology of the blood in typhoid fever. Am. J. Med. Sci.133, 896–903 (1907).
   Google Scholar
• Stuart BM, Pullen RL. Typhoid: clinical analysis of three hundred and sixty cases. Arch. Intern. Med.78, 629–635 (1946).
   Google Scholar
• Wain J, Diep TS, Ho VA et al. Quantitation of bacteria in blood of typhoid fever patients and relationship between counts and clinical features, transmissibility, and antibiotic resistance. J. Clin. Microbiol.36(6), 1683–1687 (1998).
   PubMed Web of Science ®Google Scholar
• Kaye D, Palmieri M, Eyckmans L, Rocha H, Hook E. Comparison of bile and trypticase soy broth for isolation of Salmonella from blood. Am. J. Clin. Pathol.46, 408–410 (1966).
   PubMed Web of Science ®Google Scholar
• Escamilla J, Santiago LT, Sangalang RP, Ranoa CP, Cross JH. Comparative study of three blood culture systems for isolation of enteric fever Salmonella. Southeast Asian J. Trop. Med. Public Health15, 161–166 (1984).
   PubMedGoogle Scholar
• Wain J, Diep TS, Bay PV et al. Specimens and culture media for the laboratory diagnosis of typhoid fever. J. Infect. Dev. Ctries2, 469–474 (2008).
   PubMed Web of Science ®Google Scholar
• Cummins SL. The anti-bactericidal action of bile salts. J. Hygiene.11, 373–380 (1911).
   PubMedGoogle Scholar
• Larsson M, Kronvall G, Nguyen TKC. Antibiotic medication and bacterial resistance to antibiotics: a survey of children in a Vietnamese community. Trop. Med. Int. Health20, 711–721 (2008).
   Google Scholar
• Rubin FA, McWhirter PD, Burr D et al. Rapid diagnosis of typhoid fever through identification of Salmonella Typhi within 18 hours of specimen acquisition by culture of the mononuclear cell-platelet fraction of the blood. J. Clin. Microbiol.28, 825–827 (1990).
   PubMed Web of Science ®Google Scholar
• Saha SK, Darmstadt GL, Baqui AH et al. Rapid identification and antimicrobial susceptibility testing of Salmonella enterica serovar Typhi isolated from blood: Implications for therapy. J. Clin. Microbiol.39, 3583–3585 (2001).
   PubMed Web of Science ®Google Scholar
• Escamilla J, Florez-Ugarte H, Kilpatrick ME. Evaluation of blood clot cultures for isolation of Salmonella Typhi, Salmonella Paratyphi A and Brucella melitensis. J. Clin. Microbiol.24, 388–390 (1986).
   PubMed Web of Science ®Google Scholar
• Simanjuntak CH, Hoffman SL, Darmowigoto R, Lesmana M, Soeprawoto, Edman DC. Streptokinase clot culture compared with whole blood culture for isolation of Salmonella Typhi and Salmonella paratyphi A from patients with enteric fever. Trans. R. Soc. Trop. Med. Hyg.82, 340–341 (1988).
   PubMed Web of Science ®Google Scholar
• Mantur BG, Bidari LH, Akki AS, Mulimani MS, Tikari NV. Diagnostic yield of blood clot culture in the accurate diagnosis of enteric fever and human brucellosis. Clin. Lab.53, 57–61 (2007).
   PubMed Web of Science ®Google Scholar
• Araj GF, Chugh TD. Detection of Salmonella spp. in clinical specimens by capture enzyme-linked immunosorbent assay. J. Clin. Microbiol.25, 2150–2153 (1987).
   PubMed Web of Science ®Google Scholar
• Lim PL, Fok YP. Detection of group D salmonellae in blood culture broth and of soluble antigen by tube agglutination using an O-9 monoclonal antibody latex conjugate. J. Clin. Microbiol.25, 1165–1168 (1987).
   PubMed Web of Science ®Google Scholar
• Lesmana M, Tianiadi P, Edman D, Lane E, Hendarwanto. The use of a coagglutination test to presumptively identify Salmonella Typhi in bone marrow-oxgall medium cultures from typhoid fever patients. Southeast Asian J. Trop. Med. Public Health21, 203–206 (1990).
   PubMedGoogle Scholar
• Jesudason MV, Sridharan G, Mukundan S, John TJ. Vi-specific latex agglutination for early and rapid detection of Salmonella serotype Typhi in blood cultures. Diag. Microbiol. Infect. Dis.18, 75–78 (1994).
   PubMed Web of Science ®Google Scholar
• Zhou L, Pollard AJ. A fast and highly sensitive blood culture PCR method for the clinical detection of Salmonella enterica serovar Typhi. Ann. Clin. Microbiol. Antimicrob.9, 14 (2010).
   PubMed Web of Science ®Google Scholar
• Reller ME, Zaidi AKM, Sultana S et al. Controlled evaluation of Bactec Peds Plus/F and Bactec Lytic/10 Anaerobic/F media for isolation of Salmonella enterica serovars Typhi and Paratyphi A from blood. J. Clin. Microbiol.47, 245–246 (2009).
   PubMed Web of Science ®Google Scholar
• Gasem MH, Keuter M, Dolmans WMV, van der Ven-Jongekrijg J, Djomoeljanto R, van der Meer JWM. Persistence of salmonellae in blood and bone marrow: Randomised controlled trial comparing ciprofloxacin and chloramphenicol treatments in against enteric fever. Antimicrob. Agents Chemother.47, 1727–1731 (2003).
   PubMed Web of Science ®Google Scholar
• Wain J, Pham VB, Ha V et al. Quantitation of bacteria in bone marrow from patients with typhoid fever: relationship between counts and clinical features. J. Clin. Microbiol.39, 1571–1576 (2001).
   PubMed Web of Science ®Google Scholar
• Dance DAB, Richens JE, Ho M, Acharya G, Pokhrel B, Tuladhar MR. Blood and bone marrow cultures in enteric fever. J. Clin. Pathol.44, 1038 (1991).
   PubMed Web of Science ®Google Scholar
• Wain J, Hosoglu S. The laboratory diagnosis of enteric fever. J. Infect. Dev. Ctries2, 421–425 (2008).
   PubMed Web of Science ®Google Scholar
• Hedley DW, Joshua DE, Tattershall MHN, Tavlor IW. Fine needle aspiration of bone marrow from sternum. Lancet2(8295), 415–416 (1982).
   PubMed Web of Science ®Google Scholar
• West B, Richens JE, Howard PF. Evaluation in Papua New Guinea of a urine coagglutination test and a Widal slide agglutination test for rapid diagnosis of typhoid fever. Trans. R. Soc. Trop. Med. Hyg.83, 715–717, (1989).
   PubMed Web of Science ®Google Scholar
• Pang T, Peeling RW. Diagnostic tests for infectious diseases in the developing world: two sides of the coin. Tran R. Soc. Trop. Med. Hyg.101, 856–857 (2007).
   PubMed Web of Science ®Google Scholar
• Peacock SJ, Newton PN. Public health impact of establishing the causes of bacterial infections in rural Asia. Trans. R. Soc. Trop. Med. Hyg.102, 5–6 (2002).
   Google Scholar
• Widal F. Serodiagnostic de la fièvre typhoide à-propos d’une modification par M. M. C. Nicolle et A. Halipre. Bull. Mem. Soc. Med. Hop. Paris13, 561–566 (1896).
   Google Scholar
• Ley B, Mtove G, Thriemer K et al. Evaluation of the Widal tube agglutination test for the diagnosis of typhoid fever among children admitted to a rural hospital in Tanzania and a comparison with previous studies. BMC Infect. Dis.10, 180 (2010).
   PubMed Web of Science ®Google Scholar
• Olopoenia LA, King AL. Widal agglutination test-100 years later: still plagued by controversy. Postgrad. Med. J.76, 80–84 (2000).
   PubMed Web of Science ®Google Scholar
• Onuigbo MAC. Diagnosis of typhoid fever in Nigeria: misuse of the Widal test. Trans. R. Soc. Trop. Med. Hyg.84, 129–131 (1990).
   PubMed Web of Science ®Google Scholar
• Nsutebu EF, Ndumbe PM, Koulla S. The increase in occurrence of typhoid fever in Cameroon: overdiagnosis due to misuse of the Widal test. Trans. R. Soc. Trop. Med. Hyg.96, 64–67 (2002).
   PubMed Web of Science ®Google Scholar
• Huckstep RL. Typhoid fever and other salmonella infections. E & S Livingstone Ltd., London, UK (1962).
   Google Scholar
• Levine MM, Grados O, Gilman RH, Woodward WE, Solis-Plaza R, Waldman W. Diagnostic value of the Widal test in areas endemic for typhoid fever. Am. J. Trop. Med. Hyg.27, 795–800 (1978).
   PubMed Web of Science ®Google Scholar
• House D, Chinh NT, Diep TS et al. Use of paired serum samples for serodiagnosis of typhoid fever. J. Clin. Microbiol.43, 4889–4990 (2005).
   PubMed Web of Science ®Google Scholar
• Buck RL, Esacmilla J, Sangalang RP et al. Diagnostic value of a single, pre-treatment Widal test in suspected enteric fever cases in the Phillipines. Trans. R. Soc. Trop. Med. Hyg.81, 871–873 (1983).
   Google Scholar
• Parry CM, Hoa NTT, Diep TS et al. Value of a single-tube Widal test in diagnosis of typhoid fever in Vietnam. J. Clin. Microbiol.37, 2882–2886 (1999).
   PubMed Web of Science ®Google Scholar
• House D, Wain J, Ho VA et al. Serology of typhoid fever in an area of endemicity and its relevance to diagnosis. J. Clin. Microbiol.39, 1002–1007 (2001).
   PubMed Web of Science ®Google Scholar
• Esperson F, Hoiby N, Herts JB. Cross reaction between Salmonella Typhi and 24 other bacterial species by CIEP. Acta Pathol. Microbiol. Scand.81, 243–248 (1980).
   Google Scholar
• Nardiello S, Pizzella S, Russo M, Galanti B. Serodiagnosis of typhoid fever by enzyme-linked immunosorbent assay determination of anti-Salmonella Typhi lipopolysaccharide antibodies. J. Clin. Microbiol.20, 718–721 (1984).
   PubMed Web of Science ®Google Scholar
• Sarasombath S, Banchin N, Sukosol T et al. Systemic and intestinal immunities after natural typhoid infection. J. Clin. Microbiol.25, 1088–1093, (1987).
   PubMed Web of Science ®Google Scholar
• Sippel J, Bukhtiari N, Awan MB et al. Indirect immunoglobulin G (IgG) and IgM enzyme-linked immunosorbent assays (ELISAs) and IgM capture ELISA for detection of antibodies to lipopolysaccharide in adult typhoid fever patients in Pakistan. J. Clin. Microbiol.27, 1298–1302 (1989).
   PubMed Web of Science ®Google Scholar
• Mekara Y, Maneekam N, Vithayasai V, Makonkawkeyoon S. Determination of antibody from typhoid patients against lipopolysaccharide and protein antigens of Salmonella Typhi. Asian Pac. J. Allergy Immunol.8, 95–101 (1990).
   PubMed Web of Science ®Google Scholar
• Verdugo-Rodriguez A, Gam LH, Devi S et al. Detection of antibodies against Salmonella Typhi outer membrane protein (OMP) preparation in typhoid fever patients. Asian Pac. J. Allergy Immunol.11, 45–52 (1993).
   PubMed Web of Science ®Google Scholar
• Shaheen HI, Girgis NI, Rodier GI, Kamal KA. Evaluation of the response of human humoral antibodies to Salmonella Typhi lipopolysaccharide in an area of endemic typhoid fever. Clin. Infect. Dis.21, 1012–1013 (2005).
   Google Scholar
• Pulickal AS, Gautam S, Clutterbuck EA et al. Kinetics of the natural, humoral immune response to Salmonella enterica serovar Typhi in Kathmandu, Nepal. Clin. Vaccine Immunol.16, 1413–1419 (2009).
   PubMedGoogle Scholar
• Chart H, Cheasty T, de Pinna E et al. Serodiagnosis of Salmonella enterica serovar Typhi and S.enterica serovar Paratyphi A, B and C human infections. J. Med. Microbiol.56, 1161–1167 (2007).
   PubMed Web of Science ®Google Scholar
• House D, Ho VA, Diep TS et al. Antibodies to the Vi capsule of Salmonella Typhi in the serum of typhoid patients and healthy control subjects from a typhoid endemic region. J. Infect. Dev. Ctries2, 308–312 (2008).
   PubMed Web of Science ®Google Scholar
• Felix A. Detection of chronic typhoid carriers by agglutination tests. Lancet11, 738–741 (1938).
   Google Scholar
• Nolan CM et al. Evaluation of a new assay for Vi antibody in chronic carriers of Salmonella Typhi. J. Clin. Microbiol.12, 22–26 (1980).
   PubMed Web of Science ®Google Scholar
• Losonsky GA et al. Development and evaluation of an enzyme-linked immunosorbent assay for serum Vi antibodies for detection of chronic Salmonella Typhi carriers. J. Clin. Microbiol.25, 2266–2269 (1987).
   PubMed Web of Science ®Google Scholar
• Nath G, Mauryal P, Gulati AK et al. Comparison of Vi serology and nested PCR in diagnosis of chronic typhoid carriers in two different study populations in typhoid endemic areas of India. Southeast Asia J. Trop. Med. Public Health41, 636–640 (2010).
   PubMed Web of Science ®Google Scholar
• Lin FY, Becke JM, Groves C et al. Restaurant-associated outbreak of typhoid fever in Maryland: identification of carrier facilitated by measurement of serum Vi antibodies. J. Clin. Microbiol.26, 1194–1197 (1988).
   PubMed Web of Science ®Google Scholar
• Lanata CF, Levine MM, Ristori C et al. Vi serology in detection of chronic Salmonella Typhi carriers in an endemic area. Lancet2(8347), 441–443 (1983).
   PubMed Web of Science ®Google Scholar
• Gupta A, Thanh NTM, Olsen SJ et al. Evaluation of community- based serologic screening for identification of chronic Salmonella Typhi carriers in Vietnam. Int. J. Infect. Dis.10, 309–314 (2006).
   PubMed Web of Science ®Google Scholar
• Choo KE, Oppenheimer SJ, Ismail AB, Ong KH. Rapid serodiagnosis of typhoid fever by dot enzyme immunoassay in an endemic area. Clin. Infect. Dis.19, 172–176 (1994).
   PubMed Web of Science ®Google Scholar
• Jackson AA, Ismail A, Ibrahim TA, Kader ZS, Nawi NM. Retrospective review of dot enzyme immunoassay test for typhoid fever in an endemic area. Southeast Asian J. Trop. Med. Hyg.26, 625–630 (1995).
   PubMedGoogle Scholar
• Choo KE, Davis TM, Ismail A, Tuan Ibrahim TA, Ghazali WN. Rapid and reliable serological diagnosis of enteric fever: comparative sensitivity and specificity of Typhidot and Typhidot-M tests in febrile Malaysian children. Acta Trop.72, 175–183 (1999).
   PubMed Web of Science ®Google Scholar
• Lim PL, Tam FCH, Cheong YM, Jegathesan M. One-step 2-minute test detect typhoid specific antibodies based on particle separation in tubes. J. Clin. Microbiol.36, 2271–2278 (1998).
   PubMed Web of Science ®Google Scholar
• Tam FCH, Lim PL. The TUBEX typhoid test based on particle-inhibition immunoassay detects IgM but not IgG anti-O9 antibodies. Immunol. Methods282, 83–91 (2003).
   PubMed Web of Science ®Google Scholar
• Tam FCH, Wang M, Dong B, Leung DTM, Ma CH, Lim PL. New rapid test for Paratyphoid A fever: usefulness, cross-detection and solution. Diagn. Microbiol. Infect. Dis.62, 142–150 (2008).
   PubMed Web of Science ®Google Scholar
• Gasem MH, Smits HL, Goris MG et al. Evaluation of a simple and rapid dipstick assay for the diagnosis of typhoid fever in Indonesia. J. Med. Microbiol.51, 173–177 (2002).
   PubMed Web of Science ®Google Scholar
• Hatta M, Goris MG, Heerkens E et al. Simple dipstick assay for the detection of Salmonella Typhi-specific IgM antibodies and the evolution of the immune response in patients with typhoid fever. Am. J. Trop. Med. Hyg.66, 416–421 (2002).
   PubMed Web of Science ®Google Scholar
• Abdoel T, Pastoor R, Smits HL, Hatta M. Laboratory evaluation of a simple and rapid latex agglutination assay for the serodiagnosis of typhoid fever. Trans. R. Soc. Trop. Med.101, 1032–1038 (2007).
   PubMed Web of Science ®Google Scholar
• Pastoor R, Hatta M, Abdoel TM et al. Simple, rapid, and affordable point-of-care test for the serodiagnosis of typhoid fever. Diagn. Microbiol. Infect. Dis.61, 129–134 (2008).
   PubMed Web of Science ®Google Scholar
• Gopalakrishnan V, Sekhar WY, Soo EH et al. Typhoid fever in Kuala Lumpur and a comparative evaluation of two commercial diagnostic kits for the detection of antibodies to Salmonella Typhi. Singapore Med. J.43, 354–358 (2002).
   PubMedGoogle Scholar
• Olsen SJ, Pruckler J, Bibb W et al. Evaluation of rapid diagnostic tests for typhoid fever. J. Clin. Microbiol.42, 1885–1889 (2004).
   PubMed Web of Science ®Google Scholar
• Ghimire JP, Upadhay RR. Prevalence of typhoid fever in Kathmandu valley and its rapid diagnosis by detection of IgM antibodies using commercial kit. Int. J. Infect. Dis.12, S1, e549 (2008).
   Google Scholar
• Kawano RL, Leano SA, Agdamag DMA. Comparison of serological test kits for diagnosis of typhoid fever in the Phillipines. J. Clin. Microbiol.45, 246–247 (2007).
   PubMed Web of Science ®Google Scholar
• Bhutta ZA, Mansurali N. Rapid serologic diagnosis of pediatric typhoid fever in an endemic area: a prospective comparative evaluation of two dot-enzyme immunoassays and the Widal test. Am. J. Trop. Med. Hyg.61, 654–657 (1999).
   PubMed Web of Science ®Google Scholar
• Ismail TF, Smits H, Wasfy MO, Malone JL, Fadeel MA, Mahoney F. Evaluation of dipstick serological tests for diagnosis of brucellosis and typhoid fever in Egypt. J. Clin. Microbiol.40, 3509–3511 (2002).
   PubMed Web of Science ®Google Scholar
• Dutta S, Sur D, Manna B et al. Evaluation of new-generation serologic tests for the diagnosis of typhoid fever: data from a community-based surveillance in Calcutta, India. Diagn. Microbiol. Infect. Dis.56, 359–365 (2006).
   PubMed Web of Science ®Google Scholar
• Jesuadason MV, Sivakumar S. Prospective evaluation of a rapid diagnostic test Typhidot for typhoid fever. Indian J. Med. Res.123, 513–516 (2006).
   PubMed Web of Science ®Google Scholar
• Dong B, Galindo CM, Shin E et al. Optimising typhoid fever case definitions by combining serological tests in a large population study in Hechi City, China. Epidemiol. Infect.135, 1014–1020 (2007).
   PubMed Web of Science ®Google Scholar
• Rahman M, Siddique AK, Tam FC et al. Rapid detection of early typhoid fever in endemic community children by the Tubex® O9-antibody test. Diagn. Microbiol. Infect. Dis.58, 275–281 (2007).
   PubMed Web of Science ®Google Scholar
• Naheed A, Ram PK, Brooks WA et al. Clinical value of Tubex and Typhidot® rapid diagnostic tests for typhoid fever in an urban community clinic in Bangladesh. Diagn. Microbiol. Infect. Dis.61, 381–386 (2008).
   PubMed Web of Science ®Google Scholar
• Narayanappa D, Sripathi R, Kumar KJ, Rajami HS. Comparative study of dot enzyme immunoassay (Typhidot-M) and Widal test in diagnosis of typhoid fever. Indian Pediatrics47, 331–333 (2010).
   PubMed Web of Science ®Google Scholar
• Rockhill RC, Rumans LW, Lesmana M, Dennis DT. Detection of Salmonella Typhi D, Vi, and d antigens, by slide coagglutination, in urine from patients with typhoid fever. J. Clin. Microbiol.11, 213–216 (1980).
   PubMed Web of Science ®Google Scholar
• Taylor DN, Harris JR, Barrett TJ et al. Detection of urinary Vi antigen as a diagnostic test for typhoid fever. J. Clin. Microbiol.18, 872–876 (1983).
   PubMed Web of Science ®Google Scholar
• Banchuin N, Appassakij H, Sarasombath S et al. Detection of Salmonella Typhi protein antigen in serum and urine: a value for diagnosis of typhoid fever in an endemic area. Asian Pac J. Allergy Immunol.5, 155–159 (1987).
   PubMed Web of Science ®Google Scholar
• Chaicumpa W, Thin-Inta W, Khusmith S et al. Detection with monoclonal antibody of Salmonella Typhi antigen 9 in specimens from patients. J. Clin. Microbiol.26, 1824–1830 (1988).
   PubMed Web of Science ®Google Scholar
• Chaicumpa W, Ruangkunaporn Y, Burr D, Chongsa-Nguan M, Echeverria P. Diagnosis of typhoid fever by detection of Salmonella Typhi antigen in urine. J. Clin. Microbiol.30, 2513–2515 (1992).
   PubMed Web of Science ®Google Scholar
• Nguyen NQ, Tapchaisri P, Congsa-nguan M et al. Diagnosis of enteric fever caused by Salmonella spp. in Vietnam by a monoclonal antibody-based dot-blot ELISA. Asian Pac. J. Allergy Immunol.15, 205–212 (1997).
   PubMed Web of Science ®Google Scholar
• Fadeel MA, Crump JA, Mahoney FJ et al. Rapid diagnosis of typhoid fever by enzyme-linked immunosorbent assay detection of Salmonella serotype Typhi antigens in urine. Am. J. Trop. Med. Hyg.70, 323–328 (2004).
   PubMed Web of Science ®Google Scholar
• Gupta AK, Rao KM. Simultaneous detection of Salmonella Typhi antigen and antibody in serum by counter-immunoelectrophoresis for an early and rapid diagnosis of typhoid fever. J. Immunol. Methods30, 349–353 (1979).
   PubMed Web of Science ®Google Scholar
• Sundaraj T, Ilango B, Subramanian S. A study on the usefulness of counter immune-electrophoresis for the detection of Salmonella Typhi antigen in the sera of suspected cases of enteric fever. Tran R. Soc. Trop. Med. Hyg.77, 194–197 (1983).
   PubMed Web of Science ®Google Scholar
• John TJ, Sivadasan K, Kurien B. Evaluation of passive bacterial agglutination for the diagnosis of typhoid fever. J. Clin. Microbiol.20, 751–753 (1984).
   PubMed Web of Science ®Google Scholar
• Mukherjee C, Malik A, Khan HM, Malik A. Rapid diagnosis of typhoid fever by co-agglutination in an Indian hospital. J. Med. Microbiol.39, 74–77 (1993).
   PubMed Web of Science ®Google Scholar
• Pandya M, Pillai P, Deb M. Rapid diagnosis of typhoid fever by detection of Barber protein and Vi antigen of Salmonella serotype Typhi. J. Med. Microbiol.43, 185–188 (1995).
   PubMed Web of Science ®Google Scholar
• Rao PS, Prasad SV, Arunkumar G, Shivananda PG. Salmonella Typhi Vi antigen co-agglutination test for the rapid diagnosis of typhoid fever. Indian J. Med. Sci.53, 7–9 (1999).
   PubMedGoogle Scholar
• Song JH, Cho H, Park MY, Na DS, Moon HB, Pai CH. Detection of Salmonella Typhi in the blood of patients with typhoid fever by polymerase chain reaction. J. Clin. Microbiol.31, 1439–1443 (1993).
   PubMed Web of Science ®Google Scholar
• Nizami SQ, Bhutta ZA, Siddiqui AA, Lubbard L. Enhanced detection rate of typhoid fever in children in a periurban slum in Karachi, Pakistan using polymerase chain reaction technology. Scand. J. Clin. Lab. Invest.66, 429–436 (2006).
   PubMed Web of Science ®Google Scholar
• Ali A, Haque A, Haque A et al. Multiplex PCR for differential diagnosis of emerging typhoidal pathogens directly from blood samples. Epidemiol. Infect.137, 102–107 (2009).
   PubMed Web of Science ®Google Scholar
• Zhu Q, Lim CK, Chan YN. Detection of Salmonella Typhi by polymerase chain reaction. J. Appl. Bacteriol.80, 244–251 (1996).
   PubMedGoogle Scholar
• Chaudhry R, Laxmi BV, Nisar N, Ray K, Kumar D. Standardisation of polymerase chain reaction for the detection of Salmonella Typhi in typhoid fever. J. Clin. Pathol.50, 437–439 (1997).
   PubMed Web of Science ®Google Scholar
• Haque A, Ahmed J, Qureshi JA. Early detection of typhoid by polymerase chain reaction. Ann. Saudi Med.19, 337–340 (1999).
   PubMed Web of Science ®Google Scholar
• Kumar A, Arora V, Bashamboo A, Ali S. Detection of Salmonella Typhi by polymerase chain reaction: implications in diagnosis of typhoid fever. Infect. Genetics Evol.2, 107–110 (2002).
   PubMed Web of Science ®Google Scholar
• Massi MN, Shirakawa T, Gotoh A et al. Rapid diagnosis of typhoid fever by PCR assay using one pair of primers from flagellin gene of Salmonella Typhi. J. Infect. Chemother.23, 233–237 (2003).
   Google Scholar
• Sánchez-Jiménez MM, Cardono-Castro N. Validation of a PCR for diagnosis of typhoid fever and salmonellosis by amplification of the hilA gene in clinical samples from Columbian patients. J. Med. Microbiol.53, 875–878 (2004).
   PubMed Web of Science ®Google Scholar
• Prakash P, Mishra OP, Singh AK et al. Evaluation of nested PCR in diagnosis of typhoid fever. J. Clin. Microbiol.43, 431–432 (2005).
   PubMed Web of Science ®Google Scholar
• Hatta M, Smits HL. Detection of Salmonella Typhi by nested PCR in blood, urine and stool samples. Am. J. Trop. Med. Hyg.76, 139–143 (2007).
   PubMed Web of Science ®Google Scholar
• Ambati SR, Nath G, Das BK. Diagnosis of typhoid fever by polymerase chain reaction. Indian J. Pediatr.74, 909–913 (2007).
   PubMed Web of Science ®Google Scholar
• Massi MN, Shirakawa T, Gotoh A et al. Quantitative detection of Salmonella enterica serovar Typhi from blood of suspected typhoid fever patients by real-time PCR. Int. J. Med. Microbiol.295, 117–120 (2005).
   PubMed Web of Science ®Google Scholar
• Aziah I, Ravichandran M, Ismail A. Amplification of ST50 gene using dry-reagent-based polymerase chain reaction for the detection of Salmonella Typhi. Diagn. Microbiol. Infect. Dis.59, 373–377 (2007).
   PubMed Web of Science ®Google Scholar
• Nagarajan AG, Karnam G, Lahiri A, Allam US, Charavortty D. Relaible means of diagnosis and serovar determination of blood-borne Salmonella strains: quick PCR amplification of unique genomic loci by novel primer sets. J. Clin. Microbiol.47, 2435–2441 (2009).
   PubMed Web of Science ®Google Scholar
• Nandagopal B, Sankar S, Lingesan K et al. Prevalence of Salmonella Typhi among patients with febrile illness in rural and peri-urban populations of Vellore district as determined by nested PCR targeting the flagellin gene. Mol. Diagn. Ther.14, 107–112 (2010).
   PubMed Web of Science ®Google Scholar
• Kumar A, Balachandran Y, Gupta S, Khare S, Suman. Quick PCR based diagnosis of typhoid using specific genetic markers. Biotechnol. Lett.32, 707–712 (2010).
   PubMed Web of Science ®Google Scholar
• Chaudhry R, Chandel DS, Verma N, Singh N, Singh P, Dey AB. Rapid diagnosis of typhoid fever by an in-house flagellin PCR. J. Med. Microbiol.59, 1391–1392 (2010).
   PubMed Web of Science ®Google Scholar
• Nga TVT, Karkey A, Dongol S et al. The sensitivity of real-time PCR amplification targeting invasive Salmonella serovars in biological specimens. BMC Infect. Dis.10, 125 (2010).
   PubMed Web of Science ®Google Scholar
• Levy H, Diallo S, Tennant SM et al. PCR method to identify Salmonella enterica serovar Typhi, Paratyphi A, and Paratyphi B among Salmonella isolates from the blood of patients with clinical enteric fever. J. Clin. Microbiol.46, 1861–1866 (2008).
   PubMed Web of Science ®Google Scholar
• Ou HY, Ju CTS, Thong KL et al. Translational genomics to develop a Salmonella enterica serovar Paratyphi A multiplex polymerase chain reaction assay. J. Mol.9, 624–630 (2007).
   Google Scholar
• Geojith G, Dhanasekaran S, Chandran SP, Kenneth J. Efficacy of loop mediated isothermal amplification (LAMP) assay for the laboratory identification of Mycobacterium tuberculosis isolates in a resource limited setting. J. Microbiol. Methods84, 71–73 (2011).
   PubMed Web of Science ®Google Scholar
• Mabey D, Peeling RW, Ustianowski A, Perkins MD. Diagnostics for the developing world. Nat. Rev. Microbiol.2, 231–240 (2004).
   PubMed Web of Science ®Google Scholar
• Parkhill J, Dougan G, James KD et al. Complete genome sequence of a multiple drug resistant Salmonella enterica serovar Typhi CT18. Nature413, 848–852 (2001).
   PubMed Web of Science ®Google Scholar
• Ansong C, Yoon H, Norbeck AD et al. Proteomics analysis of the causative agent of typhoid fever. J. Proteome Res.7, 546–557 (2008).
   PubMed Web of Science ®Google Scholar
• Daigle F. Typhi genes expressed during infection or involved in pathogenesis. J. Infect. Dev. Ctries2, 431–437 (2008).
   PubMed Web of Science ®Google Scholar
• Thompson LJ, Dunstan SJ, Dolecek C et al. Transcriptional response in the peripheral blood of patients infected with Salmonella enterica serovar Typhi. Proc. Natl Acad. Sci. USA106, 22433–22438 (2009).
   PubMed Web of Science ®Google Scholar
• Harris JB, Baresch-Bernal A, Rollins SM et al. Identification of in vivo-induced bacterial protein antigens during human infection with Salmonella enterica serovar Typhi. Infect. Immun.74, 5161–5168 (2006).
   PubMed Web of Science ®Google Scholar
• Herath HM. Early diagnosis of typhoid fever by the detection of salivary IgA. J. Clin. Pathol.56, 694–698 (2003).
   PubMed Web of Science ®Google Scholar
• Kirkpatrick BD, Bentley MD, Thern AM et al. Comparison of the antibodies in lymphocyte supernatant and antibody-secreting cell assays for measuring intestinal mucosal immune response to a novel oral typhoid vaccine (M01ZH09). Clin. Diagn. Lab. Immunol.12, 1127–1129 (2005).
   PubMedGoogle Scholar
• Sheikh A, Bhuiyan MS, Khanam F et al. Salmonella enterica serovar Typhi-specific immunoglobulin A antibody responses in plasma and antibody in lymphocyte supernatant specimens in Bangladeshi patients with suspected typhoid fever. Clin. Vaccine Immunol.16, 1587–1594 (2009).
   PubMed Web of Science ®Google Scholar
• Charles RC, Sheikh A, Krastins B et al. Characterisation of anti-Salmonella enterica serotype Typhi antibody responses in bacteremic Bangaldeshi patients by an immnoaffinity proteomics-based technology. Clin. Vaccine Immunol.17, 1188–1195 (2010).
   PubMedGoogle Scholar
• Fontela PS, Pai NP, Schiller I, Dendukri N, Ramsey A, Pai M. Quality and reporting of diagnostic accuracy studies in TB, HIV and malaria: evaluation using QUADAS and STARD standards. Plos ONE4, e7753 (2009).
   Google Scholar
• Limmathurotsakul D, Jamsen K, Arayawichanont A et al. Defining the true sensitivity of culture for the diagnosis of melioidosis using Baysian latent class models. Plos ONE5, e12485 (2010).
   Google Scholar