The great gerbil (
Rhombomys opimus
), widely distributed in Asia, is a natural reservoir for
Yersinia pestis
,
Leishmania donovani
and some species of helminths. In this study, 188 great gerbils were sampled in Alataw City and Manas County, northwestern China, and tested for the presence of
Theileria
,
Hepatozoon
and
Taenia
species by molecular methods.
Theileria
sp., named as “Candidatus
Theileria xinjiangensis
”, was detected in heart, liver, spleen, lung, and kidney of 6.9% rodents. Six genotypes of “
Taenia
sp.
Rhombomys opimus
”, which were close to
Taenia laticollis
(87.3–94.0% identities), were detected in cyst liquid of 5.3% rodents. “
Hepatozoon ayorgbor-
like” haemogregarines was detected in spleens of 1.6% rodents. To our best knowledge, Candidatus
Theileria xinjiangensis
,
Hepatozoon ayorgbor
-like and genotypes of “
Taenia
sp.
Rhombomys opimus
” were found for the first time in the great gerbil. These results extend our knowledge on the diversity and pathogenesis of
Theileria
,
Hepatozoon
and
Taenia
species.