African 2, a clonal complex of Mycobacterium bovis epidemiologically important in East Africa
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
ID 1022812
Author(s) Berg, Stefan; Garcia-Pelayo, M Carmen; Müller, Borna; Hailu, Elena; Asiimwe, Benon; Kremer, Kristin; Dale, James; Boniotti, M Beatrice; Rodriguez, Sabrina; Hilty, Markus; Rigouts, Leen; Firdessa, Rebuma; Machado, Adelina; Mucavele, Custodia; Ngandolo, Bongo Nare Richard; Bruchfeld, Judith; Boschiroli, Laura; Müller, Annélle; Sahraoui, Naima; Pacciarini, Maria; Cadmus, Simeon; Joloba, Moses; van Soolingen, Dick; Michel, Anita L; Djønne, Berit; Aranaz, Alicia; Zinsstag, Jakob; van Helden, Paul; Portaels, Françoise; Kazwala, Rudovick; Källenius, Gunilla; Hewinson, R Glyn; Aseffa, Abraham; Gordon, Stephen V; Smith, Noel H
Author(s) at UniBasel Zinsstag, Jakob
Year 2011
Title African 2, a clonal complex of Mycobacterium bovis epidemiologically important in East Africa
Journal Journal of bacteriology : a publication of the American Society for Microbiology
Volume 193
Number 3
Pages / Article-Number 670-8
Abstract We have identified a clonal complex of Mycobacterium bovis isolated at high frequency from cattle in Uganda, Burundi, Tanzania, and Ethiopia. We have named this related group of M. bovis strains the African 2 (Af2) clonal complex of M. bovis. Af2 strains are defined by a specific chromosomal deletion (RDAf2) and can be identified by the absence of spacers 3 to 7 in their spoligotype patterns. Deletion analysis of M. bovis isolates from Algeria, Mali, Chad, Nigeria, Cameroon, South Africa, and Mozambique did not identify any strains of the Af2 clonal complex, suggesting that this clonal complex of M. bovis is localised in East Africa. The specific spoligotype pattern of the Af2 clonal complex was rarely identified among isolates from outside Africa and the few isolates that were found and tested were intact at the RDAf2 locus. We conclude that the Af2 clonal complex is localised to cattle in East Africa. We found that strains of the Af2 clonal complex of M. bovis have, in general, four or more copies of the insertion sequence IS6110 in contrast to the majority of M. bovis strains isolated from cattle that are thought to carry one, or few copies, only
Publisher American Society for Microbiology
ISSN/ISBN 1098-5530
Full Text on edoc No
Digital Object Identifier DOI 10.1128/JB.00750-10
PubMed ID
ISI-Number WOS:000286177600009
Document type (ISI) Journal Article

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