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Sechi, L.A. and Felis, G.E. and Ahmed, N. and Paccagnini, D. and Usai, D. and Ortu, S. and Molicotti, P. and Zanetti, S. (2007) Genome and transcriptome scale portrait of sigma factors in Mycobacterium avium subsp. paratuberculosis. Infection, Genetics and Evolution, 7 (4). pp. 424-432. ISSN 1567-1348

Sechi, L.A. and Mara, L. and Cappai, P. and Frothingam, R. and Ortu, S. and Leoni, A. and Ahmed, N. and Zanetti, S. (2006) Immunization with DNA vaccines encoding different mycobacterial antigens elicits a Th1 type immune response in lambs and protects against Mycobacterium avium subspecies paratuberculosis infection. Vaccine, 24 (3). pp. 229-235. ISSN 0264-410X