Spatial repellents to reduce the outdoor transmission of malaria

Ended Project Grant Awarded Last action

Award ID
K01AI156182
Recipient
Awarding agency
Obligated
$2,190,951

Award facts

Assistance listing
93.855 Allergy and Infectious Diseases Research
Completion date
Originally
Funding
  • $2,061,607.00 Federal
  • $129,344.00 Non-federal
Place of performance
San Francisco, CA 94143, USA

Award details come from USAspending.gov.

Description

Abstract
Despite the recognized and urgent need for public health interventions that interrupt outdoor malaria transmission, no such proven interventions are available. Transfluthrin-treated hessian fabric strips (TTHFS) offer promise, showing more than six months of mosquito bite deterrence in tanzanian settings. This project seeks to clarify and advance the evidence base on TTHFS through meta-analysis of tanzanian studies, semi- field and field testing in thailand and cambodia, and user acceptability studies in cambodia to inform future studies and intervention designs. Aim 1: to determine the relationship between TTHFS characteristics and their protective efficacy over time in tanzania. I hypothesize that an optimal transfluthrin concentration, fabric strip size, and temperature range for TTHFS can be identified from prior studies in tanzania, and that impacts on efficacy caused by high temperature and relative humidity can be quantified. Aim 2: to investigate the protective efficacy of TTHFS over time in thai and cambodian outdoor conditions. I hypothesize that TTHFS that are efficacious in tanzania will show similar levels of efficacy in a very different setting against thai and cambodian malaria vectors, with similar effects of temperature and humidity on the duration of efficacy. Aim 3: to establish user acceptability and identify modifiable barriers to TTHFS uptake among cambodian forest rangers and forest goers. I hypothesize that cambodian forest rangers and forest goers will find TTHFS acceptable due to their ability to reduce mosquito bites, but will be uncomfortable with the product given their limited experience with TTHFS and will have preferences on the size, shape, and design of TTHFS. This study will inform a future interventional study of an optimized TTHFS in southeast asia, to be performed subsequent to this K01 study.

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Subawards

Subrecipient Amount Awarded
The Registered Trustees Of The Ifakara Health Institute Objective: to complete and publish two data synthesis papers on volatile pyrethroid spatial repellents. The first is an entomological study ‘Volatile… $69,122
The Registered Trustees Of The Ifakara Health Institute Continuation, No Change $31,892

Quick answers

Who received award K01AI156182?

K01AI156182 was awarded to The Regents Of The University Of California. San Francisco by National Institute of Allergy and Infectious Diseases (National Institutes of Health) on January 1, 2021.

How much is award K01AI156182 worth?

$2,190,951 has been obligated on K01AI156182: $2,061,607 in federal funding and $129,344 in non-federal funding.

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