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 1
Infection, dissemination, and virus titers for three strains of yellow fever virus, CENETROP-322, Jimenez, and Asibi, in two strains of Aedes aegypti mosquitoes, Santa Cruz and REX-D, at day 15 postinfectiona
| Ae. aegypti | Virus strain | Hamster serum titer (TCID50 log10/mL) | No. infected by titration (5%) | Mean titer of positives (TCID50 log10/mL) | Dissemination rate by IFA (%) |
|---|---|---|---|---|---|
| Santa Cruz | CENETROP-322 | 8.5 | 10/10 (100) | 3.5 | 20 |
| Santa Cruz | Jimenez | 8.7 | 29/31 (93.5) | 3.5 | 34.5 |
| Santa Cruz | Asibi | 7.3 | 3/26 (15.1) | 3.5 | 0 |
| REX-D | CENETROP-322 | 8.5 | 19/30 (63.3) | 1.5 | 80.7 |
| REX-D | Jimenez | 8.7 | 27/30 (90) | 3.5 | 73.4 |
| REX-D | Asibi | 7.3 | 13/30 (43.3) | 4.0 | 38.4 |
aTCID50, tissue culture infectious dose 50%; IFA, immunofluorescence assay.
