Abstract
There is a knowledge gap in the study of Argasidae soft ticks and the pathogens they can transmit. These hematophagous arthropods are widely distributed and are often considered typical bird ectoparasites. Tick-parasitized birds can act not only as a reservoir of pathogens but also can carry these pathogen-infected arthropods to new areas. Seven griffon vulture nestlings were sampled in northeastern Spain, collecting ticks (n = 28) from two individuals and blood from each vulture (n = 7). Blood samples from griffon vultures tested PCR positive for Flavivirus (7/7), Anaplasma (6/7), piroplasms (4/7), and Rickettsia (1/7). A total of 27 of the 28 analyzed ticks were positive for Rickettsia, 9/28 for Anaplasma, 2/28 for piroplasms, and 5/28 for Crimean-Congo Hemorrhagic fever virus (CCHFv). Sequencing and phylogenetic analyses confirmed the presence of Rickettsia spp., Babesia ardeae, and zoonotic Anaplasma phagocytophilum in vultures and Rickettsia spp., B. ardeae, and CCHFv genotype V in ticks.
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