1921
Volume 17, Issue 2
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645
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Abstract

Summary

Adult cebus ( sp.), patas (), rhesus (), and vervet () monkeys were found susceptible to experimental infection with (as evidenced by febrile response, weight loss, antibody production, and recovery of leptospires from hemoculture of some of the animals), although they did not show frank illness. Vervets were similarly susceptible to infection with , and . Leptospiruria was uncommon.

Squirrel monkeys () given had in contrast clinically acute leptospiral disease, sometimes fatal, with pronounced icterus and minimal hepatic lesions accompanied by markedly increased indirect bilirubin and normal transaminase levels. The findings suggest that hemolysis may be a significant factor in the early development of jaundice in these animals.

In some of the primates tested, the tendency of leptospiral agglutinins to disappear within a few months makes retrospective serologic studies for leptospirosis of doubtful validity. In the various species studied, except squirrel monkeys, infections elicited the “paradoxical” serologic reaction, which further emphasized the difficulty of determining the infecting leptospiral serotype by serologic means.

Primary infection with protected animals well against attempted homologous superinfection. Little cross-protection could be demonstrated by prior infection against subsequent challenge by or .

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/content/journals/10.4269/ajtmh.1968.17.202
1968-03-01
2017-09-23
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