The world's scientific and social network for malaria professionals
Subscribe to free Newsletter | 11115 malaria professionals are enjoying the free benefits of MalariaWorld today

IRS

Impact of seasonality and malaria control interventions on Anopheles density and species composition from three areas of Uganda with differing malaria endemicity

March 10, 2021 - 15:14 -- Open Access
Author(s): 
Henry Ddumba Mawejje, Maxwell Kilama, Sarah G. Staedke, et al.
Reference: 
Malaria Journal 2021 20:138, 7 March 2021

Long-lasting insecticidal nets (LLINs) and indoor residual spraying (IRS) are the malaria control interventions primarily responsible for reductions in transmission intensity across sub-Saharan Africa. These interventions, however, may have differential impact on Anopheles species composition and density. This study examined the changing pattern of Anopheles species in three areas of Uganda with markedly different transmission intensities and different levels of vector control.

Efficacy of indoor residual spraying with broflanilide (TENEBENAL), a novel meta-diamide insecticide, against pyrethroid-resistant anopheline vectors in northern Tanzania: An experimental hut trial

March 9, 2021 - 15:59 -- Open Access
Author(s): 
Snetselaar J, Rowland MW, Manunda BJ, Kisengwa EM, Small GJ, Malone DJ, Mosha FW, Kirby MJ
Reference: 
PLoS One. 2021 Mar 3;16(3):e0248026

Novel chemistry for vector control is urgently needed to counter insecticide resistance in mosquitoes. Here a new meta-diamide insecticide, broflanilide (TENEBENALTM), was evaluated in East African experimental huts in Moshi, northern Tanzania. Two consecutive experimental hut trials with broflanilide 50WP were conducted; the first evaluating the efficacy of three concentrations, 50 mg/m2, 100 mg/m2, and 200 mg/m2 using a prototype formulation, and the second trial evaluating an improved formulation.

Insecticide resistance status of indoor and outdoor resting malaria vectors in a highland and lowland site in Western Kenya

March 2, 2021 - 15:19 -- Open Access
Author(s): 
Owuor KO, Machani MG, Mukabana WR, Munga SO, Yan G, Ochomo E, Afrane YA
Reference: 
PLoS One. 2021 Mar 1;16(3):e0240771

Long Lasting Insecticidal Nets (LLINs) and indoor residual spraying (IRS) represent powerful tools for controlling malaria vectors in sub-Saharan Africa. The success of these interventions relies on their capability to inhibit indoor feeding and resting of malaria mosquitoes. This study sought to understand the interaction of insecticide resistance with indoor and outdoor resting behavioral responses of malaria vectors from Western Kenya.

Effectiveness and cost-effectiveness of reactive, targeted indoor residual spraying for malaria control in low-transmission settings: a cluster-randomised, non-inferiority trial in South Africa

March 2, 2021 - 15:05 -- Open Access
Author(s): 
Bath D, Cook J, Kleinschmidt I, et al.
Reference: 
Lancet. 2021 Feb 27;397(10276):816-827

Increasing insecticide costs and constrained malaria budgets could make universal vector control strategies, such as indoor residual spraying (IRS), unsustainable in low-transmission settings. We investigated the effectiveness and cost-effectiveness of a reactive, targeted IRS strategy.

Mini-outbreak response for malaria using indoor residual spraying

March 2, 2021 - 11:24 -- Open Access
Tags: 
Author(s): 
Hsiang MS, Mumbengegwi D, Chimumbwa J
Reference: 
Lancet. 2021 Feb 27;397(10276):771-773

In malaria-endemic settings, vector control is a key public health intervention and accounts for the majority of global spending on malaria. Indoor residual spraying (IRS) of insecticide before peak malaria seasons is one widely used and effective approach.

Access to malaria prevention and control interventions among seasonal migrant workers: A multi-region formative assessment in Ethiopia

February 25, 2021 - 08:28 -- Open Access
Author(s): 
Argaw MD, Woldegiorgis AG, Workineh HA, Akelom BA, Abebe ME, Abate DT, Ashenafi EG
Reference: 
PLoS One. 2021 Feb 23;16(2):e0246251

Mobile or seasonal migrant workers are at increased risk for acquiring malaria infections and can be the primary source of malaria reintroduction into receptive areas. The aim of this formative assessment was to describe access to malaria prevention and control interventions among seasonal migrant or mobile workers in seven regional states of Ethiopia.

Improvement of Indoor Residual Spraying and Long‐Lasting Insecticidal Net services through structured monitoring and supervision as part of the Malaria Elimination Demonstration Project in Mandla, Madhya Pradesh

February 20, 2021 - 08:40 -- Open Access
Author(s): 
Ashok K. Mishra, Sekh Nisar, Altaf A. Lal, et al.
Reference: 
Malaria Journal 2021 20:101, 18 February 2021

The Government of Madhya Pradesh employed Indoor Residual Spraying (IRS) with alpha-cypermethrin synthetic pyrethroids in sub-centres with Annual Parasite Incidence (API) from 2 to 4.99. In sub-centres with API more than 5, Long-Lasting Insecticidal Nets (LLINs) were distributed. At the request of the State Government, the Malaria Elimination Demonstration Project (MEDP) staff observed and provided support to both IRS and LLINs campaigns. In the year 2017, the study team monitored only the IRS campaigns, however, in the year 2018, the supportive supervision was provided to the IRS campaign teams along with post-distribution monitoring of the LLINs.

A comprehensive mobile application tool for disease surveillance, workforce management and supply chain management for Malaria Elimination Demonstration Project

February 17, 2021 - 08:56 -- Open Access
Tags: 
Author(s): 
Harsh Rajvanshi, Yashpal Jain, Altaf A. Lal, et al.
Reference: 
Malaria Journal 2021 20:91, 16 February 2021

Health care technologies are now offering accountability, quality, robustness, and accuracy in disease surveillance and health care delivery programmes. With the advent of mobile hand-held devices, these technologies have become more accessible and adaptable for use by field staff working in remote areas. The Malaria Elimination Demonstration Project started collection of data and conduct of routine operations using paper-based reporting systems. Observing the need for a robust and quality digital mobile application, a comprehensive mobile application tool was developed that allowed the project to conduct disease surveillance, workforce management and supply chain management.

Incremental impact on malaria incidence following indoor residual spraying in a highly endemic area with high standard ITN access in Mozambique: results from a cluster‐randomized study

February 11, 2021 - 09:37 -- Open Access
Author(s): 
Carlos Chaccour, Rose Zulliger, Francisco Saute, et al.
Reference: 
Malaria Journal 2021 20:84, 10 February 2021

Attaining the goal of reducing the global malaria burden is threatened by recent setbacks in maintaining the effectiveness of vector control interventions partly due to the emergence of pyrethroid resistant vectors. One potential strategy to address these setbacks could be combining indoor residual spraying (IRS) with non-pyrethroids and standard insecticide-treated nets (ITNs). This study aimed to provide evidence on the incremental epidemiological benefit of using third-generation IRS product in a highly endemic area with high ITN ownership.

Bionomics and ecology of Anopheles merus along the East and Southern Africa coast

February 3, 2021 - 14:25 -- Open Access
Author(s): 
Bartilol B, Omedo I, Mbogo C, Mwangangi J, Rono MK
Reference: 
Parasit Vectors. 2021 Jan 28;14(1):84

Malaria transmission persists despite the scale-up of interventions such as long-lasting insecticide-treated nets (LLINs) and indoor residual spraying (IRS). Understanding the entomological drivers of transmission is key for the design of effective and sustainable tools to address the challenge. Recent research findings indicate a shift in vector populations from the notorious Anopheles gambiae (s.s.) as a dominant vector to other species as one of the factors contributing to the persistence of malaria transmission.

Pages

Subscribe to RSS - IRS