Real-time, spatial decision support to optimize malaria vector control: The case of indoor residual spraying on Bioko Island, Equatorial Guinea

被引：8

作者：

Garcia, Guillermo A. ^{[1
]}

Atkinson, Brent ^{[1
]}

Donfack, Olivier Tresor ^{[2
]}

Hilton, Emily R. ^{[3
]}

Smith, Jordan M. ^{[2
]}

Eyono, Jeremias Nzamio Mba ^{[2
]}

Iyanga, Marcos Mbulito ^{[2
]}

Vaz, Liberato Motobe ^{[2
]}

Avue, Restituto Mba Nguema ^{[2
]}

Pollock, John ^{[4
]}

Ratsirarson, Josea ^{[1
]}

Aldrich, Edward M. ^{[4
]}

Phiri, Wonder P. ^{[2
]}

Smith, David L. ^{[3
]}

Schwabe, Christopher ^{[4
]}

Guerra, Carlos A. ^{[1
]}

机构：

[1] Med Care Dev Int, Silver Spring, MD 20910 USA

[2] Med Care Dev Int, Malabo, Equat Guinea

[3] Univ Washington, Inst Hlth Metr & Evaluat, Seattle, WA USA

[4] Med Care Dev, Augusta, ME USA

来源：

PLOS DIGITAL HEALTH | 2022年 / 1卷 / 05期

关键词：

TREATED BED NETS; INFORMATION-SYSTEMS; CHILD-MORTALITY; INTERVENTIONS; MORBIDITY; AFRICA;

D O I：

10.1371/journal.pdig.0000025

中图分类号：

R19 [保健组织与事业（卫生事业管理）];

学科分类号：

摘要：

Public health interventions require evidence-based decision-making to maximize impact. Spatial decision support systems (SDSS) are designed to collect, store, process and analyze data to generate knowledge and inform decisions. This paper discusses how the use of a SDSS, the Campaign Information Management System (CIMS), to support malaria control operations on Bioko Island has impacted key process indicators of indoor residual spraying (IRS): coverage, operational efficiency and productivity. We used data from the last five annual IRS rounds (2017 to 2021) to estimate these indicators. IRS coverage was calculated as the percentage of houses sprayed per unit area, represented by 100x100 m map- sectors. Optimal coverage was defined as between 80% and 85%, and under and over- spraying as coverage below 80% and above 85%, respectively. Operational efficiency was defined as the fraction of map-sectors that achieved optimal coverage. Daily productivity was expressed as the number of houses sprayed per sprayer per day (h/s/d). These indicators were compared across the five rounds. Overall IRS coverage (i.e. percent of total houses sprayed against the overall denominator by round) was highest in 2017 (80.2%), yet this round showed the largest proportion of oversprayed map-sectors (36.0%). Conversely, despite producing a lower overall coverage (77.5%), the 2021 round showed the highest operational efficiency (37.7%) and the lowest proportion of oversprayed map-sectors (18.7%). In 2021, higher operational efficiency was also accompanied by marginally higher productivity. Productivity ranged from 3.3 h/s/d in 2020 to 3.9 h/s/d in 2021 (median 3.6 h/s/ d). Our findings showed that the novel approach to data collection and processing proposed by the CIMS has significantly improved the operational efficiency of IRS on Bioko. High spatial granularity during planning and deployment together with closer follow-up of field teams using real-time data supported more homogeneous delivery of optimal coverage while sustaining high productivity.

引用

页数：18

共 50 条

[1] Cost and cost-effectiveness of indoor residual spraying with pirimiphos-methyl in a high malaria transmission district of Mozambique with high access to standard insecticide-treated nets [J].