Table 2 Simulation scenarios. All scenarios were run assuming low (< 20%), medium (25–30%) and high (60–70%) STH prevalences in the source village. All scenarios were run for A. lumbricoides and hookworm. MDA scenarios were run with once- and twice-yearly community-wide treatment (75% coverage of all age groups except infants, random compliance) and with treatment of pre-SAC and SAC only (75% coverage, random compliance, treatment frequency according to WHO guidelines)
Frequency of travel | Re-introduction of STH by travellers after elimination | Travel during and after MDA |
|---|---|---|
Single event | Main traveller group: young adults (15–35 years-old) | – |
Main traveller group: children < 15 years-old | – | |
Seasonal | Main traveller group: young adults (15–35 years-old) | Main traveller group: young adults (15–35 years-old) Treatment: community-wide, once a year |
– | Main traveller group: young adults (15–35 years-old) Treatment: community-wide, twice a year | |
– | Main traveller group: young adults (15–35 years-old) Treatment: pre-SAC and SAC only, frequency following WHO guidelines | |
Main traveller group: children < 15 years-old | – |