Estimation the reinvasion of New World Screwworm (Cochliomyia hominivorax) in Central America: The role of animal movement in disease dispersal and control measures

IF 1.4 Q3 PARASITOLOGY

Veterinary parasitology, regional studies and reports Pub Date : 2025-02-12 DOI:10.1016/j.vprsr.2025.101220

A. Zaldivar-Gomez , J.P. Gomez-Vazquez , A.J. Iniesta-Valencia , L.G. Figueroa-Martínez , O. Rico-Chávez

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引用次数: 0

Abstract

The New World Screwworm (Cochliomyia hominivorax) has reemerged in Central America, posing risks to livestock and public health. Recent outbreaks highlight its northward spread, raising concerns about its potential reintroduction into Mexico. This study uses linear regression models to examine the role of animal movement in the parasite's spread, with a particular focus on human-mediated factors. Our analysis determined a spread rate of 1.2–1.9 km/day for screwworm outbreaks. Furthermore, consecutive outbreak events occurring more than 50 km apart suggest a strong association with animal movements rather than natural dispersal mechanisms. Based on these findings, we identified potential routes for its reintroduction into Mexico. To mitigate further outbreaks, enhanced control measures, active surveillance, and regional cooperation are urgently required.

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估计中美洲新大陆螺旋蝇的再入侵：动物运动在疾病传播和控制措施中的作用

新世界螺旋虫在中美洲重新出现，对牲畜和公众健康构成威胁。最近的疫情突出了其向北传播，引起了人们对其可能重新传入墨西哥的担忧。本研究使用线性回归模型来检查动物运动在寄生虫传播中的作用，特别关注人类介导的因素。我们的分析确定螺旋蝇爆发的传播速度为1.2-1.9公里/天。此外，相隔50公里以上的连续暴发事件表明与动物运动而非自然传播机制密切相关。基于这些发现，我们确定了将其重新引入墨西哥的潜在途径。为减轻进一步的疫情，迫切需要加强控制措施、积极监测和区域合作。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Veterinary parasitology, regional studies and reports Multiple-

CiteScore

2.90

自引率

7.10%

发文量

126

审稿时长

97 days

期刊介绍： Veterinary Parasitology: Regional Studies and Reports focuses on aspects of veterinary parasitology that are of regional concern, which is especially important in this era of climate change and the rapid and often unconstrained travel of people and animals. Relative to regions, this journal will accept papers of the highest quality dealing with all aspects of disease prevention, pathology, treatment, epidemiology, and control of parasites within the field of veterinary medicine. Also, case reports will be considered as they add to information related to local disease and its control; such papers must be concise and represent appropriate medical intervention. Papers on veterinary parasitology from wildlife species are acceptable, but only if they relate to the practice of veterinary medicine. Studies on vector-borne bacterial and viral agents are suitable, but only if the paper deals with vector transmission of these organisms to domesticated animals. Studies dealing with parasite control by means of natural products, both in vivo and in vitro, are more suited for one of the many journals that now specialize in papers of this type. However, due to the regional nature of much of this research, submissions may be considered based upon a case being made by the author(s) to the Editor. Circumstances relating to animal experimentation must meet the International Guiding Principles for Biomedical Research Involving Animals as issued by the Council for International Organizations of Medical Sciences (obtainable from: Executive Secretary C.I.O.M.S., c/o W.H.O., Via Appia, CH-1211 Geneva 27, Switzerland).