Disseminated infection rates estimated at different viral titers. (A) Ae. aegypti Mayotte, (B) Ae. albopictus Mayotte, (C) Ae. albopictus Reunion. Rates were estimated 14 days after exposure to infectious blood-meals by IFA on head squashes. At each time point, the disseminated infection rates are given, and in brackets the number of mosquitoes tested.