Volume 75, Issue 4
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645


Australian mosquitoes from which Japanese encephalitis virus (JEV) has been recovered (, , and ) were assessed for their ability to be infected with the ChimeriVax™-JE vaccine, with yellow fever vaccine virus 17D (YF 17D) from which the backbone of ChimeriVax™-JE vaccine is derived and with JEV-Nakayama. None of the mosquitoes became infected after being fed orally with 6.1 log plaque-forming units (PFU)/mL of ChimeriVax™-JE vaccine, which is greater than the peak viremia in vaccinees (mean peak viremia = 4.8 PFU/mL, range = 0–30 PFU/mL of 0.9 days mean duration, range = 0–11 days). Some members of all three species of mosquito became infected when fed on JEV-Nakayama, but only was infected when fed on YF 17D. The results suggest that none of these three species of mosquito are likely to set up secondary cycles of transmission of ChimeriVax™-JE in Australia after feeding on a viremic vaccinee.


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  • Received : 27 Mar 2006
  • Accepted : 04 Jun 2006

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