Evidence map›Paper›PMID 42897647›Full record

ArticleParasites & vectors2026

Ectoparasitic prevention compliance in dogs based on prescription records from veterinary practices in Poland.

Michał Ceregrzyn, Hina Naz, Robert P Lavan, Rob Armstrong

Abstract read
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Article in Parasites & vectors, 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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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Michał CeregrzynMSD Animal Health Poland, Chłodna 51, 00-867, Warsaw, Poland. michal.ceregrzyn@msd.com.
Hina NazCeleritas Digital, Karachi, Pakistan.
Robert P LavanMerck Animal Health, 126 E. Lincoln Ave, Rahway, NJ, 07065, USA.
Rob ArmstrongMerck Animal Health, 126 E. Lincoln Ave, Rahway, NJ, 07065, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundFleas and ticks are common and harmful ectoparasites in dogs. They feed on blood, cause irritation, and transmit various pathogens. In Poland, the primary species Ctenocephalides felis (fleas), Ixodes ricinus, and Dermacentor reticulatus (ticks) pose a year-round threat. Veterinary organizations recommend continuous year-round protection against ectoparasites. However, actual owner compliance with this recommendation remains unknown.

methodsThis retrospective study analyzed medical records from 2021 to 2023 across 45 veterinary practices in Poland. A total of 44,140 ectoparasiticide prescriptions were reviewed for 19,351 unique dogs. Products were categorized by active ingredient and duration of efficacy into four groups: 12-week isoxazolines, monthly isoxazolines, non-isoxazoline products, and collars. Protection coverage was estimated based on the number of doses prescribed and the labeled duration of each product, assuming all medications were administered on time, starting on the date of purchase.

resultsThe mean duration of protection against ticks over 3 years was 42.0 weeks for collars, 27.5 weeks for 12-week isoxazolines, 14.2 weeks for monthly isoxazolines, and 6.7 weeks for non-isoxazoline products. All durations were significantly different. Overall, the average protection provided to all dogs in the study was only 22.5% of the recommended year-round coverage. Most dogs received only one dose per year. Only 9.1% of dogs received at least one dose annually for three consecutive years, and just 0.1% received complete (> 150 weeks) year-round protection for all 3 years.

conclusionsThese findings indicate that compliance with year-round ectoparasitic protection in Poland is significantly below recommended levels. Most dogs are not adequately protected throughout the year, and very few receive consistent protection over multiple years. This leaves a substantial portion of the canine population vulnerable to ectoparasitic infestations and vector-borne diseases. Veterinary clinics must adopt objective compliance tracking and proactively develop and refine communication strategies to enhance adherence to parasite prevention protocols and minimize the risk of parasite-related health issues in dogs, and consider the role of longer-acting parasiticides to improve adherence.

Indexed as

Dog DiseasesEctoparasitic InfestationsFlea InfestationsTick InfestationsAnimalsCtenocephalidesDermacentorDogsFemaleInsecticidesIsoxazolesIxodesPolandRetrospective StudiesInsecticidesIsoxazolesDogsEctoparasiticideFleasIsoxazolineMedication adherencePolandTicks

Identifiers

PMID42897647
PMCPMC13682044

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.