Volume 7, Number 3—June 2001
Synopsis
Spoligotype Database of Mycobacterium tuberculosis: Biogeographic Distribution of Shared Types and Epidemiologic and Phylogenetic Perspectives
Table 1
Source of data for 3,319 spoligotypes of Mycobacterium tuberculosis used to generate the database of 259 shared types
No. of isolates | Origina | Year | Reference |
---|---|---|---|
136 | Denmark | 1999 | 31 |
147 | Italy | 1999 | 32 |
157 | Cuba | 1998 | 33 |
1b | Philippines | 1997 | 34 |
3 | Peru | 1998 | 35 |
18 | USA | Unpublished | R. Frothingham |
105 | France | 1997 | 36 |
167 | United Kingdom | 1997 | 37 |
296 | France | Unpublished | This study |
28 | Zimbabwe | 1998 | 38 |
32 | Guinea-Bissau | 1999 | 25 |
118 | The Netherlands | 1997 | 7 |
68 | Various countries | 1999 | 15 |
58 | France | Unpublished | J. Maïsetti & B. Carbonnelle |
62 | Russia | Unpublished | O. Narvskaya |
84 | West Africa | 1999 | 39 |
5 | Thailand | Unpublished | P. Palittapongarnpim |
14 | Romania | 1997 | 40 |
17 | Brazil | 1999 | 41 |
5b | Spain | Unpublished | S. Semper & C. Martin |
1,283 | USA | 2000 | 12 |
1b | United Kingdom | 1999 | 42 |
19 | The Netherlands | 1998 | 43 |
1b | The Netherlands | 1999 | 19 |
69 | Far East Asia | 1995 | 44 |
69 | Caribbean | 1999 | 6 |
356 | Caribbean | Unpublished | This study |
aAlthough a potential sampling bias cannot be excluded, the sampling of isolates and their representativeness (in order of description) was as follows: Denmark, of 249 isolates described with a low copy number of IS6110 collected since 1992 (exhaustivity 93%), 24 shared types, representing 136 spoligotypes, were retained (9 other shared types, representing 49 isolates that were found exclusively in Denmark (S1,S2,S4,S19,S22,S23,S27,S30,S33), were not included in the present analysis; Italy, of 158 isolates from 156 patients in Verona collected during 1996-1997, 147 spoligotypes were retained; Cuba, of 160 isolates typed (obtained from a pool of 578 smear-positive sputa collected during 1994-1995), 157 spoligotypes described (exhaustivity 36%) were retained; Philippines, no data except for a single spoligotype available; Peru, of 29 strains isolated during 1995-1996 from the sputa of patients in Lima and Cuzco, only 3 were retained in this study since the remaining isolates shared spoligotypes with patients in Texas (12) and are included in the 1,283 Texan profiles; USA, 18 clinical isolates from the collection of R. Frothingham (representativeness unknown); France, 111 isolates from 105 hospitalized patients in Paris obtained during 1993 (patients were from three major hospitals that represented 5% of the total public hospital beds in Paris); United Kingdom, 167 isolates from all the culture-positive tuberculosis (TB) patients from three large hospitals in northwest London (without any indication of period of recruitment); France, 296 isolates sent for reference purposes during a 3-year period to the Centre National de Référence des Mycobactéries, Institut Pasteur, Paris; Zimbabwe, 28 spoligotypes obtained directly from sputum samples during a 1-month recruitment period (December 1995) of sputum-positive TB cases representing 20% of all cases; Guinea-Bissau, of 229 spoligotypes obtained from samples of 900 patients with suspected TB cases during 1989-1994, only 32 spoligotypes were fully described by the authors, and were retained for the analysis; the Netherlands, 118 isolates of unspecified representativeness from the collection of National Institute of Health (RIVM, Bilthoven); International multicenter study, 68 of 90 isolates from 38 countries representing the five continents; France, 58 isolates during a 1-year (1999) recruitment in the University Hospital of Angers; Russia, 62 isolates representing the St. Petersburg area collected during 1997-1999; West Africa, 84 isolates from Ivory Coast and around Dakar, Senegal, collected during 1994-1995; Thailand, 5 isolates from northern Thailand (unknown representativeness); Romania, 14 isolates of unknown representativeness; Brazil, 17 spoligotypes out of 91 isolates from a São Paulo hospital in 1995 (unknown representativeness); Spain, 5 multidrug-resistant isolates (unknown representativeness); USA, 1,429 clinical isolates from 1,283 patients during 1994-1999 that are part of an ongoing population-based study in Houston, Texas; United Kingdom, a single spoligotype from ancient DNA extracted from a bone sample; the Netherlands, 19 spoligotypes obtained from paraffin-wax embedded tissue samples previously collected during 1983-1993 (unknown representativeness); the Netherlands, a single spoligotype from a previous study (unknown representativeness); Far East Asia, 69 isolates from China and Mongolia obtained during 1992-1994 (unknown representativeness); Caribbean, 425 clinical isolates from a population-based ongoing study that includes all cultures isolated in Guadeloupe, Martinique, and French Guiana since 1994 and covers a 1 million population (exhaustivity 100%). Some isolates in this pool came from patients from other countries (essentially neighboring countries such as Haiti, Dominican Republic, Brazil, Commonwealth of Dominica, Barbados, and Surinam).
bDescription of a given spoligotype without precise number of isolates within this type.
References
- World Health Organization. Global tuberculosis control. WHO report 1999. Geneva: The Organization; 1999.
- Slutkin G. Global AIDS 1981-1999: the response. Int J Tuberc Lung Dis. 2000;4:S24–33.PubMedGoogle Scholar
- Snider DE, Castro KG. The global threat of drug resistant tuberculosis. N Engl J Med. 1998;338:1689–90. DOIPubMedGoogle Scholar
- Long R, Nobert E, Chomyc S, van Embden J, McNamee C, Duran RR, Transcontinental spread of multidrug-resistant Mycobacterium bovis. Am J Respir Crit Care Med. 1999;159:2014–7.PubMedGoogle Scholar
- Bifani PJ, Mathema B, Liu Z, Moghazeh SL, Shopsin B, Tempalski B, Identification of a W variant outbreak of Mycobacterium tuberculosis via population-based molecular epidemiology. JAMA. 1999;282:2321–7. DOIPubMedGoogle Scholar
- Frothingham R, Meeker-O'Connell WA. Genetic diversity in the Mycobacterium tuberculosis complex based on variable numbers of tandem DNA repeats. Microbiology. 1998;144:1189–96. DOIPubMedGoogle Scholar
- Grimont PAD. TAXOTRON instruction manual. Paris: Taxolab, Institut Pasteur; 1996.
- Jaccard P. Nouvelles recherches sur la distribution florale. Bull Soc Vaud Sci Nat. 1908;44:223–70.
- Saitou N, Nei M. The neighbor-joining method: a new method for reconstructing phylogenetic trees. Mol Biol Evol. 1987;4:406–25.PubMedGoogle Scholar
- Groenen PMA, Bunschoten AE, van Soolingen D, van Embden JDA. Nature of DNA polymorphism in the direct repeat cluster of Mycobacterium tuberculosis; application for strain differentiation by a novel typing method. Mol Microbiol. 1993;10:1057–65. DOIPubMedGoogle Scholar
- Hancock JM. The contribution of slippage-like processes to genome evolution. J Mol Evol. 1995;41:1038–47. DOIPubMedGoogle Scholar
- Fang Z, Doig C, Kenna DT, Smittipat N, Palittapongarnpim P, Watt B, IS6110-mediated deletions of wild-type chromosomes of Mycobacterium tuberculosis. J Bacteriol. 1999;181:1014–20.PubMedGoogle Scholar
- Fang Z, Morrison N, Watt B, Doig C, Forbes KJ. IS6110 transposition and evolutionary scenario of the direct repeat locus in a group of closely related Mycobacterium tuberculosis strains. J Bacteriol. 1998;180:2102–9.PubMedGoogle Scholar
- Filliol I, Sola C, Rastogi N. Detection of a previously unamplified spacer within the DR locus of Mycobacterium tuberculosis: Epidemiological implications. J Clin Microbiol. 2000;38:1231–4.PubMedGoogle Scholar
- Buikstra JE. Paleoepidemiology of tuberculosis in the Americas. In: Palfi G, Dutour O, Deak J, Hutas I, editors: Tuberculosis: past and present. Szeged, Hungary: Golden Book Publisher Ltd.; 1999. p. 479-94.
- Ortner DJ. Paleopathology: implications for the history and evolution of tuberculosis. In: Palfi G, Dutour O, Deak J, Hutas I, editors. Tuberculosis: past and present. Szeged, Hungary: Golden Book Publisher Ltd; 1999. p. 255-61.
- Kurepina NE, Sreevatsan S, Plikaytis BB, Bifani PB, Connell ND, Donneelly RJ, Characterization of the phylogenetic distribution and chromosomal insertion sites of five IS6110 elements in Mycobacterium tuberculosis: non random integration in the dnaA-dnaN region. Tuber Lung Dis. 1998;79:31–42. DOIPubMedGoogle Scholar
- Nei M. Phylogenetic analysis in molecular evolutionary genetics. Annu Rev Genet. 1996;30:371–403. DOIPubMedGoogle Scholar
- Saitou N, Nei M. The neighbor-joining method: a new method for reconstructing phylogenetic trees. Mol Biol Evol. 1987;4:406–25.PubMedGoogle Scholar
- Sreevatsan S, Pan X, Stockbauer K, Connell N, Kreiswirth B, Whittam T, Restricted structural gene polymorphism in the Mycobacterium tuberculosis complex indicates evolutionarily recent global dissemination. Proc Natl Acad Sci U S A. 1997;97:9869–74. DOIPubMedGoogle Scholar
- Castets M, Boisvert H, Grumbach F, Brunel M, Rist N. Les bacilles tuberculeux de type africain: note préliminaire. Rev Tuberc Pneumol (Paris). 1968;32:179–84.PubMedGoogle Scholar
- Frothingham R, Strickland PL, Bretzel G, Ramaswamy S, Musser JM, Williams DL. Phenotypic and genotypic characterization of Mycobacterium africanum isolates from West Africa. J Clin Microbiol. 1999;37:1921–6.PubMedGoogle Scholar
- Warren GM, Richardson M, Sampson S, Bourn W, van der Spuy G, Hide W, RFLP analysis of M. tuberculosis demonstrates strain-dependent evolution. Int J Tuberc Lung Dis. 1999;3(Suppl. I):S38.
- Tanaka MM, Small PM, Salamon H, Feldman MW. The dynamics of repeated elements: applications to the epidemiology of tuberculosis. Proc Natl Acad Sci U S A. 2000;97:3532–7. DOIPubMedGoogle Scholar
1For this purpose, the independent sampling sizes for Europe and the USA were taken as n1 and n2, the number of individuals within a given shared-type "x" was k1 and k2, and in this case, the representativeness of the two samples was p1=k1/n1 and P2=k2/n2, respectively. To assess if the divergence observed between p1 and p2 was due to sampling bias or the existence of two distinct populations, the percentage of individuals (p0) harboring shared-type "x" in the population studied was estimated by the equation p0= k1+k2/n1+n2=n1p1+n2p2/n1+n2. The distribution of the percentage of shared-type "x" in the sample sizes n1 and n2 follows a normal distribution with a mean p0 and a standard deviation of and
respectively, and the difference d=p1-p2 follows a normal distribution of mean p0-p0=0 and of variance σd2=σp12+σp22 = p0q0/n1+p0q0/n2 or σd2=p0q0 (1/n1+1/n2). The two samples being independent, the two variances were additive; the standard deviation σd=
. If the absolute value of the quotient d/σd<2, the two samples were considered to belong to a same population (CI 95%) and the variation observed in the distribution of isolates for given shared types could be due to a sampling bias. Inversely, if d/σd>2, then the differences observed in the distribution of isolates for given shared types were statistically significant and not due to potential sample bias.