Acta Veterinaria Scandinavica 2008, 50:1 http://www.actavetscand.com/content/50/1/1 Conclusion Results of this retrospective study suggest that both iver- mectin and selamectin are effective and safe for clearance of clinical signs of cheyletiellosis in rabbits. In the group including oral administration of ivermectin (Group 2) a tendency towards a lower efficacy was registered, as com- pared to Groups 1 (ivermectin injections) and 3 (selamec- tin spot-on), although not statistically significant. Controlled prospective studies including larger groups are needed to further evaluate efficacy of the treatment proto- cols. Competing interests The author(s) declare that they have no competing inter- ests. Authors' contributions MM collected and analyzed the data and drafted the man- uscript. KB participated in planning the study and helped to draft the manuscript. All authors read and approved the final manuscript. 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