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



This paper describes a series of experiments which were done to determine the behavior of 14 different phleboviruses in laboratory-reared sand flies ( and ) after oral and parenteral infection. Most of the viruses replicated in the sand flies after intrathoracic inoculation; however, the insects were quite refractory to oral infection. Six of 11 phleboviruses tested were transovarially transmitted in one or more sand fly species. The percentage of infected F offspring produced by parenterally infected female parents ranged from 1.5–60%, depending on the virus type used. These data support the hypothesis that some of the phleboviruses are maintained in sand flies by transovarial transmission.


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