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These parasites use a variety of animal species as intermediate hosts. North American opossums (\n                      <jats:italic>Didelphis virginiana<\/jats:italic>\n                      ), North American southern plains woodrats (\n                      <jats:italic>Neotoma micropus<\/jats:italic>\n                      ) and South American domestic rabbits (\n                      <jats:italic>Oryctolagus cuniculus<\/jats:italic>\n                      ) are intermediate hosts of\n                      <jats:italic>B. darlingi<\/jats:italic>\n                      ,\n                      <jats:italic>B. neotomofelis<\/jats:italic>\n                      and\n                      <jats:italic>B. oryctofelisi<\/jats:italic>\n                      , respectively. Based on conserved regions in the internal transcribed spacer-1 (ITS1) sequence of the ribosomal DNA (rDNA), a real-time PCR for a sensitive detection of these\n                      <jats:italic>Besnoitia<\/jats:italic>\n                      spp. in tissues of intermediate hosts and faeces of definitive hosts has recently been established. Available sequence data suggest that species such as\n                      <jats:italic>B. akodoni<\/jats:italic>\n                      and\n                      <jats:italic>B. jellisoni<\/jats:italic>\n                      are also covered by this real-time PCR. It has been hypothesised that additional\n                      <jats:italic>Besnoitia<\/jats:italic>\n                      spp. exist worldwide that are closely related to\n                      <jats:italic>B. darlingi<\/jats:italic>\n                      or\n                      <jats:italic>B. darlingi<\/jats:italic>\n                      -like parasites (\n                      <jats:italic>B. neotomofelis<\/jats:italic>\n                      ,\n                      <jats:italic>B. oryctofelisi<\/jats:italic>\n                      ,\n                      <jats:italic>B. akodoni<\/jats:italic>\n                      or\n                      <jats:italic>B. jellisoni<\/jats:italic>\n                      ). Also\u00a0related, but not as\u00a0closely, is\n                      <jats:italic>B. besnoiti<\/jats:italic>\n                      , the cause of bovine besnoitiosis.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      Faecal samples from two free-ranging cheetahs (\n                      <jats:italic>Acinonyx jubatus<\/jats:italic>\n                      ) from Namibia that had previously tested positive for coccidian parasites by coproscopy were used for this study. A conventional PCR verified the presence of coccidian parasite DNA. To clarify the identity of these coccidia, the faecal DNA samples were further characterised by species-specific PCRs and Sanger sequencing.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      One of the samples tested positive for\n                      <jats:italic>B. darlingi<\/jats:italic>\n                      or\n                      <jats:italic>B. darlingi<\/jats:italic>\n                      -like parasites by real-time PCR, while no other coccidian parasites, including\n                      <jats:italic>Toxoplasma gondii<\/jats:italic>\n                      ,\n                      <jats:italic>Hammondia hammondi<\/jats:italic>\n                      ,\n                      <jats:italic>H. heydorni<\/jats:italic>\n                      ,\n                      <jats:italic>B. besnoiti<\/jats:italic>\n                      and\n                      <jats:italic>Neospora caninum<\/jats:italic>\n                      , were detected in the two samples. The rDNA of the\n                      <jats:italic>B. darlingi<\/jats:italic>\n                      -like parasite was amplified and partially sequenced. Comparison with existing sequences in GenBank revealed a close relationship to other\n                      <jats:italic>Besnoitia<\/jats:italic>\n                      spp., but also showed clear divergences.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>\n                      Our results suggest that a so far unknown\n                      <jats:italic>Besnoitia<\/jats:italic>\n                      species exists in Namibian wildlife, which is closely related to\n                      <jats:italic>B. darlingi<\/jats:italic>\n                      ,\n                      <jats:italic>B. neotomofelis<\/jats:italic>\n                      ,\n                      <jats:italic>B. oryctofelisi<\/jats:italic>\n                      ,\n                      <jats:italic>B. akodoni<\/jats:italic>\n                      or\n                      <jats:italic>B. jellisoni.<\/jats:italic>\n                      The cheetah appears to be the definitive host of this newly discovered parasite, while prey species of the cheetah may act as intermediate hosts.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Graphical Abstract<\/jats:title>\n                  <\/jats:sec>","DOI":"10.1186\/s13071-021-04697-3","type":"journal-article","created":{"date-parts":[[2021,4,14]],"date-time":"2021-04-14T16:34:50Z","timestamp":1618418090000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Molecular analysis suggests that Namibian cheetahs (Acinonyx jubatus) are definitive hosts of a so far undescribed Besnoitia species"],"prefix":"10.1186","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3217-289X","authenticated-orcid":false,"given":"Gereon","family":"Schares","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7855-8579","authenticated-orcid":false,"given":"Maike","family":"Joeres","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6530-8645","authenticated-orcid":false,"given":"Franziska","family":"Rachel","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mareen","family":"Tuschy","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9488-0069","authenticated-orcid":false,"given":"G\u00e1bor \u00c1.","family":"Czirj\u00e1k","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9457-0658","authenticated-orcid":false,"given":"Pavlo","family":"Maksimov","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7400-9409","authenticated-orcid":false,"given":"Franz J.","family":"Conraths","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0414-2298","authenticated-orcid":false,"given":"Bettina","family":"Wachter","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2021,4,14]]},"reference":[{"key":"4697_CR1","first-page":"521","volume":"126","author":"JP Dubey","year":"2003","unstructured":"Dubey JP, Sreekumar C, Lindsay DS, Hill D, Rosenthal BM, Venturini L, et al. 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