Study: NCT04622241

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Eave Ribbons
Description: Eave ribbons are 15 cm-wide triple-layered hessian fabrics (burlap-line fabric woven from sisal fibres, procured locally), in lengths starting 1 m that can be attached to houses using nails, adhesives or Velcro, without completely closing eave-spaces. The eave ribbons will be treated by study staff with a commonly used spatial repellent, transfluthrin. Eave ribbons will be retreated by study staff after 6 months (only in Phase II, if selected for inclusion in the cluster-randomised trial).~All households will be provided with piperonyl butoxide (PBO) long-lasting insecticidal nets (LLINs) - one for every two residents.

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Eave Ribbons
Description: Eave ribbons are 15 cm-wide triple-layered hessian fabrics (burlap-line fabric woven from sisal fibres, procured locally), in lengths starting 1 m that can be attached to houses using nails, adhesives or Velcro, without completely closing eave-spaces. The eave ribbons will be treated by study staff with a commonly used spatial repellent, transfluthrin. Eave ribbons will be retreated by study staff after 6 months (only in Phase II, if selected for inclusion in the cluster-randomised trial).~All households will be provided with piperonyl butoxide (PBO) long-lasting insecticidal nets (LLINs) - one for every two residents.

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full House Screening
Description: Full house screening includes screening eaves/ceilings, ventilation openings, and windows. Eaves/ceiling, air vents, and windows of eligible houses will be screened with wire mesh or other locally available screening materials. or ceilings, if eaves are closed and ventilation openings. We are also filling in any gaps in the walls. All households will be provided with piperonyl butoxide (PBO) long-lasting insecticidal nets (LLINs) - one for every two residents.

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Full House Screening
Description: Full house screening includes screening eaves/ceilings, ventilation openings, and windows. Eaves/ceiling, air vents, and windows of eligible houses will be screened with wire mesh or other locally available screening materials. or ceilings, if eaves are closed and ventilation openings. We are also filling in any gaps in the walls. All households will be provided with piperonyl butoxide (PBO) long-lasting insecticidal nets (LLINs) - one for every two residents.

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Partial House Screening
Description: Partial screening will include either screening of the eaves or installing a screened ceiling, where no ceiling is present. In traditional houses, a netting (either insecticide-impregnated or untreated) may be either fixed in multiple places in the rafters or by hanging from a single central point and attached to the walls. No other screening or filling of the gaps will be done in partially screened houses.All households will be provided with piperonyl butoxide (PBO) long-lasting insecticidal nets (LLINs) - one for every two residents.