Analysis of risk factors and prevalence of haemoplasma infection in dogs

Autor: Chelsea A E Hicks, Séverine Tasker, Giane Regina Paludo, J. Kamani, Larissa C. Aquino, Christopher R Helps, A. M. Haruna
Rok vydání: 2015
Předmět:
Zdroj: Aquino, L C, Kamani, J, Haruna, A M, Paludo, G R, Hicks, C A, Helps, C R & Tasker, S 2016, ' Analysis of risk factors and prevalence of haemoplasma infection in dogs ', Veterinary Parasitology, vol. 221, pp. 111-117 . https://doi.org/10.1016/j.vetpar.2016.03.014
ISSN: 1873-2550
Popis: Mycoplasma haemocanis (Mhc) and 'Candidatus Mycoplasma haematoparvum' (CMhp) are canine haemoplasma species that can induce anaemia in immunocompromised and/or splenectomised dogs. This study aimed to determine the prevalence and phylogeny of canine haemoplasma species in dogs from Nigeria and describe any risk factors for infection. Canine haemoplasma species-specific and generic haemoplasma qPCR assays were used. The species-specific qPCR assays found Mhc infection in 18 of 245 dogs (7.3%), and CMhp infection in only one dog (0.4%). The generic haemoplasma qPCR assays were positive in 44 of 245 (17.9%) dogs. Twenty-five dogs had discordant qPCR results in that they were generic haemoplasma qPCR positive but species-specific qPCR negative. Further evaluation of these dogs by 16S rDNA sequencing gave limited results but 5 were confirmed to be infected with non-haemoplasma species: 2 Anaplasma phagocytophilum, 1 Anaplasma ovis, 1 Serratia marcescens and 1 Aerococcus spp. The 16S rRNA gene sequences from Mhc species showed > 99.8% identity with each other and > 99.6% identity with GenBank sequences, and resided in a single clade with other global Mhc and Mycoplasma haemofelis sequences, indicating low 16S rRNA genetic variability amongst this canine haemoplasma species.
Databáze: OpenAIRE