29/10/2026
Det er ikke bare bakterier som blir resistente. Også parasitter kan bli det. Derfor er det viktig med å ikke bruke parasittmidler feil, og sørge for at man faktisk har en grunn til å bruke dem.
Some hookworm populations have developed multidrug resistance, allowing them to survive treatment with benzimidazoles, macrocyclic lactones, and tetrahydropyrimidines (e.g., pyrantel). This makes drug-resistant hookworms one of the Emerging Parasites of Greatest Concern. Their ability to infect humans further underscores the importance of addressing this issue through a One Health approach.
The 2026 AAHA One Health Guidelines: Emerging Concerns in Canine and Feline Parasitology highlight evolving parasitic threats and the importance of responsible diagnosis, treatment, and prevention.
Key takeaways for veterinary teams:
1. Recognize emerging parasitic threats.
Changes in climate, host movement, parasite distribution, and drug resistance can alter parasitic risks over time.
2. Prioritize appropriate diagnostics.
Select tests based on the suspected parasite, and investigate possible reinfection, inadequate dosing, and other causes before concluding that treatment failure is due to drug resistance.
3. Practice antiparasitic drug stewardship.
Follow the “Six Rights” of prescribing: the right patient, parasite, drug, administration, disposal, and monitoring.
4. Verify treatment efficacy.
Clinical improvement alone may not confirm parasite clearance. Appropriate post-treatment testing can help identify persistent infection and assess treatment effectiveness.
5. Individualize prevention plans.
Consider the animal’s lifestyle, geographic location, exposure risks, and household circumstances when developing parasite prevention strategies.
6. Apply a One Health approach.
Some parasites pose zoonotic risks. Veterinary teams should communicate these risks clearly and help clients understand practical ways to reduce exposure.
These guidelines reinforce an important principle: effective parasite control requires more than routine deworming. It calls for informed diagnostic decisions, responsible antiparasitic use, follow-up, and collaboration between veterinary teams and pet owners.
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See guidelines linked in the comments: