Figure 7.

The critical stray dog vaccination targets for different total dog population sizes: (A) 1,000, (B) 2,000, and (C) 5,000, when 70% of owned dogs are vaccinated. Corners of the triangle represent when the dog populations contain only dogs of one type (as labeled); the edges when populations contain two dog types only, and the center represents when the population is made up equally of all three types. The blue area shows when a 70% vaccination rate of owned dogs alone is sufficient to bring R₀ < 1. The region marked as “Danger zone” shows when vaccinating the entire stray dog population remains ineffective to control rabies despite a 70% owned dog vaccination rate.