Volume s1-22, Issue 6
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



  • 1.  A number of small mammals were collected in the State of Texas. Of these, one nine-banded armadillo (), eight opossums (), two house mice (), and 32 wood rats (), were found to be naturally infected with .
  • 2.  Cultural tests proved once more to be very fruitful, oftentimes a positive culture being obtained when no trypanosomes were demonstrable by direct microscopic examination of the blood.
  • 3.  Xenodiagnosis, while not recommended by the writer in human diagnosis, was found to be of value in detecting and determining natural infection in animals.
  • 4.  Some of the wood rats were found to have double or triple infection with , sarcosporidia, and microfilaria.
  • 5.  A few strains of isolated from each species of animals have been maintained from one to two years. The morphology of trypanosomes and (in vertebrate and invertebrate hosts) and the histopathological changes which they produced in experimental animals are indistinguishable from classical strains of isolated from human sources.


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  • Received : 02 Apr 1942
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