Figure 12.

Prevalence of microfilariae (mf), community microfilarial load (CMFL), annual biting rate (ABR), and crude and O. volvulus specific annual transmission potentials (ATP and ATP_{O. volv.}) against time in the Bougouriba (N) study area. The thick grey lines at the top indicate the period over which ivermectin mass treatment was given, while thin black lines indicate the period of vector control. Note that the top two panels refer to survey villages, and the bottom two panels to capture points. ATP_{O. volv.} values are denoted by the grey symbols in the plot for ATP.