Volume 34, Issue 1
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



were infected by intrathoracic inoculation and membrane feeding techniques with two phleboviruses (Toscana and Arbia) isolated in Italy from this sand fly species. Low levels of multiplication of both viruses were detected after intrathoracic inoculation of the sand flies. Only some insects were found infected after oral ingestion of the two viruses. The percentage of flies infected orally was related to the amount of virus ingested. Toscana virus was transovarially transmitted to two larvae of the F progeny of orally infected sand flies. No signs of infection were observed after oral infection when unnatural virus-vector combinations were tested, e.g., Toscana virus- or Naples sand fly fever virus-. The virus concentrations recorded in experimentally infected with both Toscana and Arbia viruses were similar to those found in naturally-infected sand flies.


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