Volume 40, Issue 6
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



Transovarial transmission (TOT) of Toscana (TOS) and Arbia (ARB) viruses in a laboratory colony of is reported. Toscana and ARB viruses were maintained in females, initially infected by intrathoracic inoculation, for 2 and 3 consecutive generations respectively. TOT was demonstrated in F (75%) and F (67%) generation adults for TOS and F (47%), F (37%), and F (34%) generation adults for ARB virus. The progressive decline of virus infection rates in each generation suggests that these agents cannot be maintained indefinitely by TOT.

No infection was observed in F progeny after female parents were fed through membranes with either virus. Transovarially infected females were able to transmit TOS virus by bite to a susceptible vertebrate. Venereal infection of females mated to males transovarially infected with TOS virus was seen.


Article metrics loading...

Loading full text...

Full text loading...


Most Cited This Month

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error