The genome of the heartwater agent Ehrlichia ruminantium contains multiple tandem repeats of actively variable copy number

by Collins, Nicola E., Liebenberg, Junita, De Villiers, Etienne P., Brayton, Kelly A., Louw, Elmarié, Pretorius, Alri, Faber, F. Erika, Van Heerden, Henriette, Josemans, Antoinette, Van Kleef, Mirinda, Steyn, Helena C., Van Strijp, M. Fransie, Zweygarth, Erich, Jongejan, Frans, Maillard, Jean-Charles, Berthier, David, et al.