Immature indices by month for large and medium barges.

The data shown in the table below only includes independent instances of sampling for large (N = 32) and medium (N = 33) barges. Container (positive containers/ number inspected *100), Breteau (positive containers/ premises inspected*100), and Premise Indices (positive premises/ number inspected *100), were calculated using the presence of either larvae or pupae. Entomological indices were adapted for vehicle surveillance so that an individual vehicle was counted as a ‘premise’[18].Immature indices by month for large and medium barges.