Table 2.
Mayaro virus (MAYV) infection and viral titer in Brazilian and Florida populations of Aedes aegypti. Viral titers are expressed in log10 plaque forming unit equivalents/mL. Mosquitoes were tested for infection on the day they died following ingestion of MAYV-infected blood.
| Treatment | Mosquito Strain | No. Tested | No. infected (%) | Body Titer † (Non-Disseminated Infection) |
No. Disseminated Infection (%) |
Body Titer † (Disseminated Infection) |
Leg Titer † |
|---|---|---|---|---|---|---|---|
| Unexposed (control) | Brazil | 57 | 0 (0) | . | . | . | . |
| Unexposed (control) | USA (Florida) | 74 | 0 (0) | . | . | . | . |
| MAYV exposed |
Brazil | 157 | 86 (54.78) a | 2.78 a | 59 (68.60) a | 4.30 a | 2.52 a |
| MAYV exposed |
USA (Florida) | 106 | 34 (32.08) b | 2.58 a | 14 (41.18) b | 3.98 a | 3.02 a |
† Treatment groups with the same letter in the same column are not significantly different by comparisons of means.