SEROPREVALENCE OF TOXOPLASMA GONDII IN MARKET HOGS COLLECTED FROM US SLAUGHTERHOUSES

被引:3
|
作者
Fredericks, Jorrell [1 ]
Hill, Dolores E. [1 ]
Hawkins-Cooper, Diane S. [1 ]
Fournet, Valsin M. [1 ]
Calero-Landa, Jonathan [2 ]
Adams, Brandon [1 ]
Johnson, Alexis [1 ]
Barrow, Marwa [1 ]
Aquino, Jovan [1 ]
Mahmoud, Talatha [1 ]
Murphy, Victoria [1 ]
Barlow, Alec [1 ]
Patel, Priyal [1 ]
George, Megan [1 ]
Chehab, Nadya [1 ]
Kramer, Matthew [3 ]
Bauer, Nate E. [4 ]
机构
[1] ARS, USDA, NEA, Anim Parasit Dis Lab,BARC East, Bldg 307-C, Beltsville, MD 20705 USA
[2] Univ Calif Riverside, Riverside, CA 92521 USA
[3] ARS, USDA, NEA, Stat Grp,BARC West, Bldg 003, Beltsville, MD 20705 USA
[4] 53 Pamela Lane, College Stn, TX 77845 USA
关键词
Market hog; Seroprevalence; Slaughterhouse; Sow; Toxoplasma gondii; CONGENITAL TOXOPLASMOSIS; UNITED-STATES; INFECTION; BRADYZOITES; PREVALENCE; ANTIBODIES; EXPOSURE; ANIMALS; SWINE; PORK;
D O I
10.1645/20-142
中图分类号
R38 [医学寄生虫学]; Q [生物科学];
学科分类号
07 ; 0710 ; 09 ; 100103 ;
摘要
Foodborne pathogens continue to pose a public health risk and can cause serious illness and outbreaks of disease in consumers. The consumption of raw or undercooked infected meat, such as pork containing infectious stages of Toxoplasma gondii, may be a major route of transmission to humans. Given the occasional presence of T. gondii in pork meat and the frequent use of pork for products not intended to be cooked, such as dry-cured ham, a potential risk exists for T. gondii transmission to consumers of these products. The purpose of this study was to determine the seroprevalence of T. gondii in U.S. market hogs and sows at slaughter. A total of 20,209 sera samples collected from 22 U.S. slaughterhouses, including 15 of the top 25 largest slaughter plants in the United States, were tested for T. gondii antibodies using a commercial ELISA assay. Seroprevalence in this study was 0.74%, with a herd prevalence of 10.86%. We compared seroprevalence of T. gondii in market hogs vs. sows from a separate but geographically similar set of slaughterhouse locations, with serum samples screened using the T. gondii modified agglutination test. This set of market hogs demonstrated 0% seroprevalence for T. gondii, while sows from geographically similar but separate slaughter facilities demonstrated a seroprevalence of 1.03%. Overall, both analyses show low seroprevalence of T. gondii in U.S market hogs and sows, respectively, and a marked drop in prevalence in market hogs and sows compared to previous studies.
引用
收藏
页码:404 / 410
页数:7
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