Surveillance for Trichinella infection in U.S. pigs raised under controlled management documents negligible risk for public health

IF 2.9 Q2 PARASITOLOGY Food and Waterborne Parasitology Pub Date : 2024-07-22 DOI:10.1016/j.fawpar.2024.e00238

H. Ray Gamble , Dolores E. Hill , Valsin Fournet , Brandon Adams , Diane Hawkins-Cooper , Jorrell Fredericks , Jovan Aquino , Sonia Agu , Nadya Chehab , Ako Ankrah , Maria C. Antognoli , Marta D. Remmenga , Scott Kramer , Lori Gustafson , Benjamin M. Rosenthal

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Abstract

Biosecurity measures preventing exposure of pigs to rodents, wildlife, and contaminated feed or waste products reduce the risk of zoonotic Trichinella infection in pork. To understand the benefits of such measures in the United States, we conducted the first comprehensive survey of pigs produced under the Pork Quality Assurance Plus production standard, surveying 3,208,643 pork samples from twelve processing locations tested over a period of 54 months. We detected no Trichinella sp. positives in any of these pork samples, providing a 95% confidence in a Trichinella sp. prevalence of <1 in 1,000,000 for the processors represented by the study. These results are consistent with international guidelines for having a negligible risk to public health. Results obtained here should generalize to all PQA+ sources, as Trichinella sp. exposure risk is based on production guidelines that extend to the larger PQA+ population.

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对美国受控管理饲养的猪的旋毛虫感染进行监测，结果表明对公共健康的风险可以忽略不计

生物安全措施可防止猪接触啮齿动物、野生动物和受污染的饲料或废品，从而降低猪肉感染人畜共患病旋毛虫的风险。为了解此类措施在美国的益处，我们对按照猪肉质量保证强化生产标准生产的猪进行了首次全面调查，调查了来自 12 个加工地点的 3,208,643 份猪肉样本，检测时间长达 54 个月。我们在这些猪肉样本中均未检测到毛旋毛虫阳性，因此这项调查所代表的加工商的毛旋毛虫感染率为百万分之 1，可信度为 95%。这些结果符合国际准则，即对公众健康的风险可忽略不计。由于旋毛虫暴露风险是基于生产准则得出的，而生产准则也适用于更大范围的 PQA+ 群体，因此此处得出的结果应适用于所有 PQA+ 来源。

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来源期刊

Food and Waterborne Parasitology Immunology and Microbiology-Parasitology

CiteScore

5.10

自引率

4.00%

发文量

审稿时长

13 weeks

期刊介绍： Food and Waterborne Parasitology publishes high quality papers containing original research findings, investigative reports, and scientific proceedings on parasites which are transmitted to humans via the consumption of food or water. The relevant parasites include protozoa, nematodes, cestodes and trematodes which are transmitted by food or water and capable of infecting humans. Pertinent food includes products of animal or plant origin which are domestic or wild, and consumed by humans. Animals and plants from both terrestrial and aquatic sources are included, as well as studies related to potable and other types of water which serve to harbor, perpetuate or disseminate food and waterborne parasites. Studies dealing with prevalence, transmission, epidemiology, risk assessment and mitigation, including control measures and test methodologies for parasites in food and water are of particular interest. Evidence of the emergence of such parasites and interactions among domestic animals, wildlife and humans are of interest. The impact of parasites on the health and welfare of humans is viewed as very important and within scope of the journal. Manuscripts with scientifically generated information on associations between food and waterborne parasitic diseases and lifestyle, culture and economies are also welcome. Studies involving animal experiments must meet the International Guiding Principles for Biomedical Research Involving Animals as issued by the Council for International Organizations of Medical Sciences.