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Background: Farm animals are usually suspected to transmit infections to humans. Domestic cavies (Cavia porcellus) are hosts to a variety of pathogens, some of which are zoonotic. Several parasites including the protozoa Giardia spp. and Cryptosporidium spp. may be causative agents of gastrointestinal disorders in domestic cavies and humans. The aim of the study was to investigate the occurrence of potentially zoonotic protozoa as well as any potential zoonotic gastrointestinal parasite in domestic cavies raised under a semi extensive system in the rural areas of Cameroon., Results: Giardia/Cryptosporidium antigens were detected in 12.90% of cavies. Helminthe eggs were found in 1.52% of animals. The prevalence of Paraspidodera uncinata, Heligmosomoides polygyrus (also known as Nematospiroides dubius) and Trichuris sp. was 1% (4/397), 0.3% (1/397), and 0.3% (1/397), respectively. Presence of Giardia/Cryptosporidium was unrelated to the occurrence of diarrhea, as none of the positive samples was from a diarrheic individual., Conclusion: Domestic cavies are hosts of Giardia/Cryptosporidium and appear as potential source of human giardiasis, cryptosporidiosis and infection with H. polygyrus in Cameroon. In keeping with the One Health Initiative, veterinarians and medical doctors should collaborate to address the problem of Giardia and Cryptosporidium infection in cavies and cavy breeders both in Cameroon and other countries with a similar cavy breeding system. Follow-up studies are required to further taxonomically characterize these cavy parasites and to determine their routes of transmission to humans.

Background: Domestic cavies (Cavia porcellus) are increasingly reared in rural areas of Cameroon for meat and income generation. Unfortunately, health constraints due to various pathogens including parasites stand as one of the major obstacles to the development of cavy industry in the country. The main objective of this study was to investigate the species of gastrointestinal parasites in cavy husbandry in the western highlands of Cameroon and to detect external parasites in those animals affected with dermatological disorders., Methods: Pooled fecal samples were collected from 62 privately-own farms, as well as individual fecal samples from 21 animals at the Teaching and Research Farm of the University of Dschang, and examined for parasite eggs and oocysts/cysts. Ectoparasites were also collected from cavies and identified., Results: The overall infection rate with both helminthes and arthropods was 40.3 %. Ectoparasites were found in 19 out of 62 farms (30.6 %) while 12.9 % of farms were infected with helminthes. Eggs of Graphidium strigosum (8.1 %), Trichostrongylus sp. (3.2 %) and Paraspidodera uncinata (3.2 %) were found at farm level. Oocysts of Eimeria caviae and eggs of Paraspidodera uncinata were found in 14.3 and 9.5 % of examined animals respectively. Concerning ectoparasites, Cordylobia anthropophaga and Pulex sp. were observed in 25.8 % and 6.6 % of farms respectively., Conclusion: The parasites are apparently composed of host-specific species in the original habitat (South America) and species acquired later from other mammals. These parasites are either deleterious to cavy health or zoonotic. Preventive measures should be put in practice to avoid their presence on farms due to their harmful effect on cavy rearing.