Mean microfilarial intensity*in those ≥ 20 yr (mf/mg)
§Modelled annual biting rate (ABR): the average number of (S. damnosum s.str./S. sirbanum) bites to which a person is exposed during a whole year.
¶Modelled annual transmission potential (ATP): the average number of infective larvae (L3) of O. volvulus potentially received during a whole year by a person exposed to the annual biting rate; model assumes perennial transmission.
†Both the ABR and ATP are for a proportion of vector blood meals of human origin equal to 0.3.
‡Nodule prevalence (recorded by APOC) is converted to microfilarial load in this age range.
*Arithmetic mean microfilarial load per mg of skin; note that this is different to the community microfilarial load (CMFL), which is the geometric mean microfilarial load per skin snip in those aged 20 years and above).