ArticleFrontiers in veterinary science2026
Beyond the clinical eye: mapping intestinal parasitic infections and its risk factors among dogs and cats across Portugal.
Article in Frontiers in veterinary science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Intestinal parasitic infections in dogs and cats represent a significant clinical challenge and pose relevant zoonotic risks to public health. Epidemiological data on Portuguese companion animals remain scarce, with limited sample sizes and geographic coverage, leaving key gaps in understanding parasite prevalence and associated risk factors. Methods: This cross-sectional epidemiological study investigated the prevalence and associated risk factors of intestinal parasitism in 363 dogs and 345 cats, sampled from companion, breeding, shelter, and stray populations between November 2022 and April 2025. A total of 708 fecal samples were analyzed using coprological techniques (flotation and sedimentation), Results: Overall, 41.6% of dogs were positive for intestinal parasites, with protozoa and monoparasitism (61.2%) predominating. Conclusion: Taken together, the detection of intestinal parasites in 41.6% of dogs and 42.6% of cats highlights a substantial burden, with parasites of zoonotic potential accounting for 73.9% of all positive results (295/399). These high rates point to critical gaps in preventive care among companion animal populations, underscoring the urgent need for strengthened surveillance, targeted treatment protocols, and enhanced public health education to reduce parasite burdens and mitigate zoonotic risks in Portugal.
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