Volume 10, Number 9—September 2004
Dispatch
Yellow Fever Virus Infectivity for Bolivian Aedes aegypti Mosquitoes
John-Paul Mutebi*, Alberto Gianella†, Amelia Travassos da Rosa‡, Robert B. Tesh‡, Alan D. T. Barrett‡, and Stephen Higgs‡
Table 2
Transmission of yellow fever virus by infected Aedes aegypti mosquitoes to suckling micea
| Ae. aegypti strain | Virus strain | No. mice infected/ No. exposed (%) | HI titer for 4 U of antigen |
||
|---|---|---|---|---|---|
| YFV | SLEV | WNV | |||
| Santa Cruz- | CENETROP-322 | 1/5 (20)b | 0 | 0 | 0 |
| 0 | 0 | 0 | |||
| 320 | 0 | 0 | |||
| 0 | 0 | 0 | |||
| 0 | 0 | 0 | |||
| REX-D | Jimenez | 4/5 (80)c | NT | NT | NT |
| NT | NT | NT | |||
| NT | NT | NT | |||
| NT | NT | NT | |||
| NT | NT | NT | |||
| REX-D | Asibi | 3/5 (60)b | 160 | 0 | 0 |
| 0 | 0 | 0 | |||
| 0 | 0 | 0 | |||
| 80 | 0 | 0 | |||
| 40 | 0 | 0 | |||
aHI, hemagluttination-inhibition; YFV, yellow fever virus; SLEV, St. Louis encephalitis virus; WNV, West Nile virus; NT, not tested.
bInfection determined by presence of anti-YF antibodies in mice sera (HI test). 0 indicates a titer of <1:20.
cInfection determined by death/virus detection for suckling mice.
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