Fig 1.
Overall roadmap of yaws eradication and scope of this policy guidance platform.
TCT, total community treatment; TTT, total targeted treatment, S1, initial serosurvey; S2,= first follow-up survey; S3, second follow-up survey; S4, third follow-up survey (optional); S5, fourth follow up survey (optional).
Table 1.
List of available serological tests for trepanomatoses, including yaws [16–18].
Table 2.
Number of children to be tested for yaws-specific initial serosurvey.
Fig 2.
Algorithm for determining the number and selecting primary sampling units and households.
Fig 3.
Testing and decision algorithm for determining infection in individual positive results during serological survey.
Trep: Treponemal test; Non-trep: Non-treponemal test; POS: Positive NEG: Negative. aGiven the reactivity of serological tests to syphilis, this algorithm does not apply to children with a history of congenital syphilis.