Volume 35, Issue 2
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



From January to April 1984, 63 and 40 were trapped in northeastern Puerto Rico and examined for adults. Nineteen (47.5%) of the and 10 (15.9%) of the were infected, giving an overall infection rate of 28.2%. Four species of terrestrial snails and one species of brown slug were examined for larvae. Two snail species, and , were found infected with third stage larvae of . These larvae were harvested and inoculated per os into adult white mice. Immature adult worms were found in the brain tissue of all mice inoculated. This is the first report of in the rat and snail populations of Puerto Rico.


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