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High‐throughput microfluidic real‐time PCR for the simultaneous detection of selected vector‐borne pathogens in dogs in Bosnia and Herzegovina

Abstract : A scarcity of information on the occurrence of zoonotic vector-borne pathogens (VBPs), alongside a lack of human and animal health authorities' awareness of pre-existing data, augment the risk of VBP infection for local people and limit our ability to establish control programs. This holds especially true in low-middle income countries such as Bosnia and Herzegovina (BiH). This dearth of information on zoonotic VBPs is bolstered by the inability of previously used diagnostic tests, including conventional molecular diagnostic methods, to detect the full spectrum of relevant pathogens. Considering this, we set out to apply a microfluidic qPCR assay capable of detecting 43 bacterial and protozoan pathogens from blood to accrue critical baseline data for VBPs occurrence in BiH. A total of 408 dogs were tested of which half were infected with at least one VBP of zoonotic or veterinary importance. Leishmania infantum was found in 18% of dogs, reaching a prevalence as high as 38% in urbanized areas of Sarajevo. These data highlight substantially higher levels of L. infantum prevalence when compared to that previously reported using conventional methods using the same samples. Additionally, this high-throughput microfluidic qPCR assay was able to detect pathogens rarely or never reported in canines in BiH, including Anaplasma phagocytophilum (3%), Anaplasma platys (0.2%), haemotropic Mycoplasma (1%) and Hepatozoon canis (26%). Our report of the endemicity of important zoonotic pathogens and those of clinical significance to dogs emphasizes the need for urgent implementation of surveillance and control for VBPs in BiH, targeting both animal and human infections within the country.
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https://hal-anses.archives-ouvertes.fr/anses-03744275
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Submitted on : Tuesday, August 2, 2022 - 4:25:12 PM
Last modification on : Friday, August 5, 2022 - 3:03:09 PM

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Distributed under a Creative Commons Attribution 4.0 International License

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Vito Colella, Lucas Huggins, Adnan Hodžić, Clémence Galon, Rebecca Traub, et al.. High‐throughput microfluidic real‐time PCR for the simultaneous detection of selected vector‐borne pathogens in dogs in Bosnia and Herzegovina. Transboundary and emerging diseases, Wiley-Blackwell, In press, ⟨10.1111/tbed.14645⟩. ⟨anses-03744275⟩

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