A Serological Survey in Three Species of Monkeys for Antibodies to Toxoplasma

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Summary

Samples of serum were obtained from 64 rhesus, 50 cynomolgus and 50 pig tail monkeys. Whereas none of the sera of the rhesus monkeys was positive in the dye test, 22% of the cynomolgus monkeys and 82% of the pig tail monkeys had titers of 1:2 or 1:8. The problem of interpretation of these low titers is discussed.

Author Notes

Department of Allergy, Immunology and Infectious Diseases, Palo Alto Medical Research Foundation; Department of Medicine, Stanford University School of Medicine, Palo Alto, California.

Department of Preventive Medicine, Stanford University School of Medicine, Palo Alto, California.

Department of Allergy, Immunology and Infectious Diseases, Palo Alto Medical Research Foundation, Palo Alto, California.

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