Canine vector-borne diseases (CVBDs) have significant clinical and public health implications.

Although quilombola individuals and their dogs may be exposed to hemoparasites such as A. phagocytophilum, B. microti, and E. chaffeensis, no study to date has been conducted in these populations. The aim of this study was to investigate the presence of antibodies against Anaplasma phagocytophilum, Babesia microti, and Ehrlichia chaffeensis in humans and dogs from quilombola communities in Brazil. Serum samples from humans and dogs were collected from four rural quilombola communities and analyzed using indirect immunofluorescence assays. The results revealed antibody levels of 8% for A. phagocytophilum, 3% for B. microti, and 1% for E. chaffeensis in humans and 60%, 50%, and 65%, respectively, in dogs. Notably, women were significantly more likely to be seropositive for A. phagocytophilum than men (p = 0.0289). Dogs from the Serra do Apon community more commonly had A. phagocytophilum (p = 0.0477) and B. microti (p = 0.0448) than those from the other areas. To the best of our knowledge, this is the first study to report human exposure to A. phagocytophilum and the ocurrence of B. microti in Brazil. The antibody level of vector-borne diseases in humans is a public health concern, particularly in vulnerable populations and rural areas. The dogs were universally hosted Rhipicephalus sanguineus ticks, suggesting their possible role in transmission. Thus, further epidemiological surveillance studies should be conducted in vulnerable populations to mitigate the impact of such zoonotic diseases.

Publication date: July 2025 Source: Veterinary Parasitology, Volume 337 Author(s): Nokuzola F. Nkosi, Charles Byaruhanga, Sintayehu M. Arega, Anne Conan, Darryn L. Knobel, Marinda C. Oosthuizen, Melvyn Quan

Publication date: July 2025 Source: #ticks and #tick-borne Diseases, Volume 16, Issue 4 Author(s): Maggy Jouglin, Barbara Blanc, Alice Brunet, Katia Ortiz, Laurence Malandrin

While wild boars (Sus scrofa) can act as hosts and reservoirs for various tick-borne pathogens, including Babesia spp. and Anaplasma spp., relevant data from Romania remain scarce. This study aimed to detect these agents in blood samples collected from 321 wild boars across nine Romanian counties between 2021 and 2024. Molecular screening using real-time PCR revealed a prevalence of 6.85% for Babesia spp. and 9.34% for Anaplasma spp. Sequencing confirmed the presence of Anaplasma phagocytophilum...

Infection with Anaplasma phagocytophilum, a gram-negative, lipopolysaccharide (LPS)-negative, obligate intracellular bacterium, results in multiple peripheral blood cytopenias. We hypothesized that in...

Dyrehospitaler og -klinikker i hovedstadsområdet har henover sommeren oplevet, at flere hunde bliver syge efter bid fra flåter.