**5. Conclusions**

The results of this study suggest that divergent *Cryptosporidium* spp., including *C. parvum*, bamboo rat genotypes I and III, *C. occultus* and *C. muris,* occur in farmed bamboo rats in Guangdong, China. The *C. parvum* identified belongs to the unique subtype families IIo and IIp. As most of the *Cryptosporidium* species and *C. parvum* subtypes are not commonly found in domestic animals, they could have wildlife origin and have maintained at high transmission intensity in some of the semi-domesticated exotic animals. Attention should be paid to their spillover to other farm animals as well as human populations.

**Author Contributions:** Conceptualization, L.X. and Y.F.; data curation, F.L.; formal analysis, F.L.; funding acquisition, L.X. and Y.F.; investigation, W.Z. and C.Z.; methodology, L.X. and Y.F.; project administration, N.L.; resources, Y.F.; software, L.X. and Y.F.; supervision, Y.G.; validation, L.X. and Y.F.; visualization, L.X. and Y.F.; writing—original draft, F.L.; writing—review and editing, L.X. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research was funded by the National Natural Science Foundation of China (U1901208 and 31820103014), 111 Project (D20008), and Innovation Team Project of Guangdong University (2019KCXTD001).

**Conflicts of Interest:** The authors declare no conflict of interest.
