Abstract
Ticks are important vectors involved in the transmission of pathogens of zoonotic and veterinary importance. In this study, ticks were collected from cattle in Navrongo, Kintampo, and Kumasi and screened for pathogen DNA using PCR and Sanger sequencing. A total of 454 ticks were collected, morphologically identified and confirmed using primers that target the 660-bp segment of the mitochondrial COI gene. The predominant tick species was Amblyomma variegatum (70.26%). DNA was extracted from 85 tick pools and screened for the presence of Rickettsia DNA based on the 639 bp of the outer membrane protein A (ompA) gene, Ehrlichia/Anaplasma DNA based on the 345 bp fragment of the 16SrRNA gene and Babesia/ Theileria DNA based on the 560 bp fragment of the ssrRNA gene. From the 85 tick pools, the DNA of pathogens detected were Rickettsia africae (36.47%), Rickettsia aeschlimannii (16.47%), Ehrlichia canis (2.35%), Babesia occultans (1.18%), Theileria velifera (1.18%) and a symbiont Candidatus Midichloria mitochondrii (8.24%). This study reports the first molecular detection of Candidatus Cryptoplasma californiense (1.18%) in Ghana. Coinfections were recorded in 8.24% of the tick pools. The findings of this study highlight the importance of tick species in Ghana and the need to adopt effective control measures to prevent pathogen spread.
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SOA and JA wrote the main manuscript. JA, SOA, CNLT, PKO, ROT, KNY, JNY, FAT and SKA conducted the laboratory analysis. SKA analysed the data. JA, SOA and SKD designed the study. This study was supervised by SKD. All authors reviewed and approved the final manuscript.
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Ansah-Owusu, J., Addo, S.O., Tawiah-Mensah, C.N.L. et al. Tick-borne pathogens of zoonotic and veterinary importance in cattle ticks in Ghana. Parasitol Res 123, 44 (2024). https://doi.org/10.1007/s00436-023-08071-3
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DOI: https://doi.org/10.1007/s00436-023-08071-3