对于已记录并符合要求的犬只，每年进行犬恶丝虫抗原检测以预防性更新是否与残余感染风险相称？ 机翻

中文关键词（术语机标，非人工翻译）：传染病

摘要

Current American Heartworm Society guidelines characterize prescribing macrocyclic lactone preventives in the absence of antigen testing as "NOT RECOMMENDED," regardless of compliance history or geographic prevalence. Number Needed to Screen, an established human preventive medicine framework applied here as a novel veterinary screening tool, has not previously been used to evaluate this guideline. Using county-level Companion Animal Parasite Council prevalence data and the compliance-gap distribution as a proxy, we derive geographically stratified Number Needed to Screen estimates varying approximately 25-fold across US states. A risk-stratified approach calibrated to local prevalence and compliance history merits prospective evaluation.

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