Prevalence of Toxoplasma gondii antibodies in dairy goats from 1982 to 1984

J. P. Dubey From the Zoonotic Diseases Laboratory, Livestock and Poultry Sciences Institute, Beltsville Agricultural Research Center-East, Agricultural Research Service, USDA, Beltsville, MD 20705 (Dubey), and the Department of Veterinary Pathobiology, College of Veterinary Medicine, Washington State University, Pullman, WA 99164 (Adams).

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 MVSc, PhD
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D. S. Adams From the Zoonotic Diseases Laboratory, Livestock and Poultry Sciences Institute, Beltsville Agricultural Research Center-East, Agricultural Research Service, USDA, Beltsville, MD 20705 (Dubey), and the Department of Veterinary Pathobiology, College of Veterinary Medicine, Washington State University, Pullman, WA 99164 (Adams).

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 DVM, PhD

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Summary

Serum samples from 1,000 dairy goats from northwest United States (1982 to 1984) were examined for Toxoplasma gondii antibodies by a modified agglutination test. Toxoplasma gondii antibody titers were <1:40 for 779 goats, 1:40 for 153 goats, and ≥1:400 for 68 goats. Seroprevalence increased with age of goats; 3.7% of 54 six-month-old goats were seropositive (≥1:40) vs 17.8% of 218 one-year-old goats.

Summary

Serum samples from 1,000 dairy goats from northwest United States (1982 to 1984) were examined for Toxoplasma gondii antibodies by a modified agglutination test. Toxoplasma gondii antibody titers were <1:40 for 779 goats, 1:40 for 153 goats, and ≥1:400 for 68 goats. Seroprevalence increased with age of goats; 3.7% of 54 six-month-old goats were seropositive (≥1:40) vs 17.8% of 218 one-year-old goats.

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