How important are holes and insecticide...

In the News

Vacancy: Office Assistant – IHI Mtwara site office

IHI is looking for an Office Assistant to fill a vacant position at the IHI Mtwara Site Office. She/he will be responsible for handling all day to day activities of …

Join us for the Innovation Workshop on April 8-19

(Ifakara, Morogoro) If you can develop truly novel approaches to health in Tanzania and beyond, and you’re an inventor or entrepreneur, join us for the 2019 #Innovation Workshop in Ifakara …

Recent Projects

Calcium supplementation on pregnant women

Project summary This is a trial-based study funded by the Bill and Melinda Gates Foundation. It intends to generate evidence for decision-making on the potential non-inferiority of a lower dose …

Sustainable, Healthy, Learning Cities and Neighbourhoods

The Sustainable, Healthy, Learning Cities and Neighbourhoods is an exciting project in which IHI works with a consortium of partners from Asia and Africa to 1) develop capacity for improved …

Determining the effect of holes of different sizes and varying concentrations of insecticide in bednets on personal and community protection using pyrethroid resistant Anopheles gambiae sensu stricto and pyrethroid susceptible Anopheles arabiensis

The WHO 2013Guidance Notes for Estimating the Longevity of Long-Lasting Insecticidal Nets in Malaria Control” set several priorities for operational research. In response to this guidance we are carrying out a controlled study in the semi-field to understand the determinants of net entry for partially resistant and highly resistant (30% an 70% survival to exposure with discriminating dose of deltamethrin) Anopheles arabiensis. The following outcome variables are measured with nets with different holes and insecticidal concentrations: 1) Personal protection to the user, 2) Overall insecticidal effect that will protect all members of the community, and 3) Predicted proportion reduction in entomological inoculation rate (EIR).

Lead scientists:

Sarah Moore

Adam Saddler


Tulane University
Swiss Tropical and Public Health Insitute


Project Management Institute (PMI)

Projects Location

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