Volume 33, Issue 5
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



Studies of susceptibility to the FCB-1 strain of from Colombia were conducted in three different groups of monkeys. The results indicated that from the north of the Magdalena Valley were the most susceptible host. from the central Magdalena Valley appeared to be less susceptible to infection, while monkeys from the eastern Andes were even more resistant to infection. Serum electrophoretic studies were not useful as indicators of resistance or susceptibility to infection. However, the presence of 58 chromosomes in monkeys from the east Andes, a karyotype not previously reported, may be an indicator for the resistance of these animals to the FCB-1 strain. Based on these results, it is possible to assume that monkeys from the eastern Andes region of Colombia may represent a new species of ; further studies are needed to clarify its taxonomic status.


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