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elimination

Will More of the Same Achieve Malaria Elimination? Results from an Integrated Macroeconomic Epidemiological Demographic Model

September 23, 2020 - 09:32 -- Open Access
Author(s): 
Smith RD, Keogh-Brown MR, Chico RM, Bretscher MT, Drakeley C, Jensen HT
Reference: 
Am J Trop Med Hyg. 2020 Sep 21

Historic levels of funding have reduced the global burden of malaria in recent years. Questions remain, however, as to whether scaling up interventions, in parallel with economic growth, has made malaria elimination more likely today than previously. The consequences of "trying but failing" to eliminate malaria are also uncertain. Reduced malaria exposure decreases the acquisition of semi-immunity during childhood, a necessary phase of the immunological transition that occurs on the pathway to malaria elimination.

Demonstration of indigenous malaria elimination through Track-Test-Treat-Track (T4) strategy in a Malaria Elimination Demonstration Project in Mandla, Madhya Pradesh

September 17, 2020 - 13:52 -- Open Access
Author(s): 
Praveen K. Bharti, Harsh Rajvanshi, Altaf A. Lal, et al.
Reference: 
Malaria Journal 2020 19:339, 17 September 2020

Many malaria endemic countries are heading towards malaria elimination through the use of case management and vector control strategies, which employ surveillance, improving access to early diagnosis, prompt treatment., and integrated vector control measures. There is a consensus that elimination of malaria is feasible when rapid detection and prompt treatment is combined with mosquito-human contact interruption in an efficient and sustainable manner at community levels. This paper describes results of an integrated case management and vector control strategy for reducing malaria cases in 1233 villages over 3 years in district Mandla, Madhya Pradesh, India.

Vector control for malaria elimination in Botswana: progress, gaps and opportunities

August 27, 2020 - 08:11 -- Open Access
Author(s): 
Tefo Kesaobaka Kgoroebutswe, Ntebaleng Makate, Ulrike Fillinger, Mandla Mpho, Godira Segoea, Peter Onyango Sangoro, Clifford Maina Mutero, Emmanuel Chanda, Davies Ntebela, Mpho Mogopa, Tjantilili Mosweunyane and Theresia Estomih Nkya
Reference: 
Malaria Journal 2020 19:301, 26 August 2020

Botswana has in the recent past 10 years made tremendous progress in the control of malaria and this informed re-orientation from malaria control to malaria elimination by the year 2020. This progress is attributed to improved case management, and scale-up of key vector control interventions; indoor residual spraying (IRS) and long-lasting insecticidal nets (LLINs). However, insecticide resistance, outdoor biting and resting, and predisposing human behaviour, such as staying outdoors or sleeping outdoors without the use of protective measures, pose a challenge to the realization of the full impact of LLINs and IRS.

A multiphase program for malaria elimination in southern Mozambique (the Magude project): A before-after study

August 18, 2020 - 15:00 -- Open Access
Author(s): 
Galatas B, Saúte F, Martí-Soler H, Aide P, et al.
Reference: 
PLoS Med. 2020 Aug 14;17(8):e1003227

Malaria eradication remains the long-term vision of the World Health Organization (WHO). However, whether malaria elimination is feasible in areas of stable transmission in sub-Saharan Africa with currently available tools remains a subject of debate. This study aimed to evaluate a multiphased malaria elimination project to interrupt Plasmodium falciparum malaria transmission in a rural district of southern Mozambique.

Vector genetics, insecticide resistance and gene drives: An agent-based modeling approach to evaluate malaria transmission and elimination

August 18, 2020 - 14:58 -- Open Access
Author(s): 
Selvaraj P, Wenger EA, Bridenbecker D, Windbichler N, Russell JR, Gerardin J, Bever CA, Nikolov M
Reference: 
PLoS Comput Biol. 2020 Aug 14;16(8):e1008121

Vector control has been a key component in the fight against malaria for decades, and chemical insecticides are critical to the success of vector control programs worldwide. However, increasing resistance to insecticides threatens to undermine these efforts. Understanding the evolution and propagation of resistance is thus imperative to mitigating loss of intervention effectiveness.

NOT Open Access | Prevalence of Asymptomatic Malaria Parasitemia in Odisha, India: A Challenge to Malaria Elimination

August 17, 2020 - 13:08 -- NOT Open Access
Author(s): 
Kumari P, Sinha S, Gahtori R, Yadav CP, Pradhan MM, Rahi M, Pande V, Anvikar AR
Reference: 
Am J Trop Med Hyg. 2020 Aug 10

The prevalence of malaria in India is decreasing, but it remains a major concern for public health administration. The role of submicroscopic malaria and asymptomatic malaria parasitemia and their persistence is being explored. A cross-sectional survey was conducted in the Kandhamal district of Odisha (India) during May-June 2017. Blood samples were collected from 1897 individuals for screening of asymptomatic parasitemia. Samples were screened using rapid diagnostic tests (RDTs) and examined microscopically for Plasmodium species.

NOT Open Access | Health policy impacts on malaria transmission in Costa Rica

August 3, 2020 - 16:13 -- NOT Open Access
Author(s): 
Chaves LF, Ramírez Rojas M, Prado M, Garcés JL, Salas Peraza D, Marín Rodríguez R
Reference: 
Parasitology. 2020 Aug;147(9):999-1007.

Costa Rica is near malaria elimination. This achievement has followed shifts in malaria health policy. Here, we evaluate the impacts that different health policies have had on malaria transmission in Costa Rica from 1913 to 2018. We identified regime shifts and used regression models to measure the impact of different health policies on malaria transmission in Costa Rica using annual case records.

Moving towards malaria elimination in southern Mozambique: Cost and cost-effectiveness of mass drug administration combined with intensified malaria control

July 7, 2020 - 13:41 -- Open Access
Author(s): 
Cirera L, Galatas B, Alonso S, Paaijmans K, Mamuquele M, Martí-Soler H, Guinovart C, Munguambe H, Luis F, Nhantumbo H, Montañà J, Bassat Q, Candrinho B, Rabinovich R, Macete E, Aide P, Alonso P, Saúte F, Sicuri E
Reference: 
PLoS ONE 15(7): e0235631

As new combinations of interventions aiming at interrupting malaria transmission are under evaluation, understanding the associated economic costs and benefits is critical for decision-making. This study assessed the economic cost and cost-effectiveness of the Magude project, a malaria elimination initiative implemented in a district in southern Mozambique (i.e. Magude) between August 2015–June 2018. This project piloted a combination of two mass drug administration (MDA) rounds per year for two consecutive years, annual rounds of universal indoor residual spraying (IRS) and a strengthened surveillance and response system on the back of universal long-lasting insecticide treated net (LLIN) coverage and routine case management implemented by the National Malaria Control Program (NMCP). Although local transmission was not interrupted, the project achieved large reductions in the burden of malaria in the target district.

Moving from Malaria Burden Reduction toward Elimination: An Evaluation of Mass Drug Administration in Southern Province, Zambia

July 7, 2020 - 13:00 -- Open Access
Author(s): 
Miller JM, Eisele TP, Fraser MS, Lewis MT, Slutsker L, Chizema Kawesha E
Reference: 
Am. J. Trop. Med. Hyg., 00(0), 2020, pp. 1–4

From December 2014 to February 2016, a cluster randomized controlled trial was carried out in 60 health facility catchment areas along Lake Kariba in Zambia's Southern Province. The trial sought to evaluate the impact of four rounds of a mass drug administration (MDA) intervention with dihydroartemisinin-piperaquine (DHAP) or focal MDA with DHAP at the household level compared with a control population that received the standard of care.

Malaria Risk Map Using Spatial Multi-Criteria Decision Analysis along Yunnan Border During the Pre-elimination Period

July 1, 2020 - 16:35 -- Open Access
Author(s): 
Zhao X, Thanapongtharm W, Lawawirojwong S, Wei C, Tang Y, Zhou Y, Sun X, Cui L, Sattabongkot J, Kaewkungwal J
Reference: 
Am J Trop Med Hyg. 2020 Jun 29

In moving toward malaria elimination, finer scale malaria risk maps are required to identify hotspots for implementing surveillance–response activities, allocating resources, and preparing health facilities based on the needs and necessities at each specific area. This study aimed to demonstrate the use of multi-criteria decision analysis (MCDA) in conjunction with geographic information systems (GISs) to create a spatial model and risk maps by integrating satellite remote-sensing and malaria surveillance data from 18 counties of Yunnan Province along the China–Myanmar border.

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