Malaria in Eswatini, 2012–2019: a case study of the elimination effort

Abstract Eswatini was the first country in sub-Saharan Africa to pass a National Malaria Elimination Policy in 2011, and later set a target for elimination by the year 2020. This case study aimed to review the malaria surveillance data of Eswatini collected over 8 years between 2012 and 2019 to eval...

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Main Authors: Theresia Estomih Nkya, Ulrike Fillinger, Makhoselive Dlamini, Onyango P. Sangoro, Rose Marubu, Zulisile Zulu, Emmanuel Chanda, Clifford Maina Mutero, Quinton Dlamini
Format: Article
Language:English
Published: BMC 2021-03-01
Series:Malaria Journal
Subjects:
Online Access:https://doi.org/10.1186/s12936-021-03699-x
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author Theresia Estomih Nkya
Ulrike Fillinger
Makhoselive Dlamini
Onyango P. Sangoro
Rose Marubu
Zulisile Zulu
Emmanuel Chanda
Clifford Maina Mutero
Quinton Dlamini
author_facet Theresia Estomih Nkya
Ulrike Fillinger
Makhoselive Dlamini
Onyango P. Sangoro
Rose Marubu
Zulisile Zulu
Emmanuel Chanda
Clifford Maina Mutero
Quinton Dlamini
author_sort Theresia Estomih Nkya
collection DOAJ
description Abstract Eswatini was the first country in sub-Saharan Africa to pass a National Malaria Elimination Policy in 2011, and later set a target for elimination by the year 2020. This case study aimed to review the malaria surveillance data of Eswatini collected over 8 years between 2012 and 2019 to evaluate the country’s efforts that targeted malaria elimination by 2020. Coverage of indoor residual spraying (IRS) for vector control and data on malaria cases were provided by the National Malaria Programme (NMP) of Eswatini. The data included all cases treated for malaria in all health facilities. The data was analysed descriptively. Over the 8 years, a total of 5511 patients reported to the health facilities with malaria symptoms. The case investigation rate through the routine surveillance system increased from 50% in 2012 to 84% in 2019. Incidence per 1000 population at risk fluctuated over the years, but in general increased from 0.70 in 2012 to 1.65 in 2019, with the highest incidence of 3.19 reported in 2017. IRS data showed inconsistency in spraying over the 8 years. Most of the cases were diagnosed by rapid diagnostic test (RDT) kits in government (87.6%), mission (89.1%), private (87%) and company/industry-owned facilities (84.3%), either singly or in combination with microscopy. Eswatini has fallen short of achieving malaria elimination by 2020. Malaria cases are still consistently reported, albeit at low rates, with occasional localized outbreaks. To achieve elimination, it is critical to optimize timely and well-targeted IRS and to consider rational expansion of tools for an integrated malaria control approach in Eswatini by including tools such as larval source management, long-lasting insecticidal nets (LLINs), screening of mosquito house entry points, and chemoprophylaxis. The establishment of rigorous routine entomological surveillance should also be prioritized to determine the local malaria vectors’ ecology, potential species diversity, the role of secondary vectors and insecticide resistance.
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spelling doaj.art-e3d73a3af2bb499a828b21f8704ed1122022-12-21T23:02:28ZengBMCMalaria Journal1475-28752021-03-0120111310.1186/s12936-021-03699-xMalaria in Eswatini, 2012–2019: a case study of the elimination effortTheresia Estomih Nkya0Ulrike Fillinger1Makhoselive Dlamini2Onyango P. Sangoro3Rose Marubu4Zulisile Zulu5Emmanuel Chanda6Clifford Maina Mutero7Quinton Dlamini8International Centre of Insect Physiology and EcologyInternational Centre of Insect Physiology and EcologyWorld Health Organization, Eswatini Country OfficeInternational Centre of Insect Physiology and EcologyInternational Centre of Insect Physiology and EcologyNational Malaria Programme, Ministry of HealthWorld Health Organization, Regional Office for AfricaInternational Centre of Insect Physiology and EcologyNational Malaria Programme, Ministry of HealthAbstract Eswatini was the first country in sub-Saharan Africa to pass a National Malaria Elimination Policy in 2011, and later set a target for elimination by the year 2020. This case study aimed to review the malaria surveillance data of Eswatini collected over 8 years between 2012 and 2019 to evaluate the country’s efforts that targeted malaria elimination by 2020. Coverage of indoor residual spraying (IRS) for vector control and data on malaria cases were provided by the National Malaria Programme (NMP) of Eswatini. The data included all cases treated for malaria in all health facilities. The data was analysed descriptively. Over the 8 years, a total of 5511 patients reported to the health facilities with malaria symptoms. The case investigation rate through the routine surveillance system increased from 50% in 2012 to 84% in 2019. Incidence per 1000 population at risk fluctuated over the years, but in general increased from 0.70 in 2012 to 1.65 in 2019, with the highest incidence of 3.19 reported in 2017. IRS data showed inconsistency in spraying over the 8 years. Most of the cases were diagnosed by rapid diagnostic test (RDT) kits in government (87.6%), mission (89.1%), private (87%) and company/industry-owned facilities (84.3%), either singly or in combination with microscopy. Eswatini has fallen short of achieving malaria elimination by 2020. Malaria cases are still consistently reported, albeit at low rates, with occasional localized outbreaks. To achieve elimination, it is critical to optimize timely and well-targeted IRS and to consider rational expansion of tools for an integrated malaria control approach in Eswatini by including tools such as larval source management, long-lasting insecticidal nets (LLINs), screening of mosquito house entry points, and chemoprophylaxis. The establishment of rigorous routine entomological surveillance should also be prioritized to determine the local malaria vectors’ ecology, potential species diversity, the role of secondary vectors and insecticide resistance.https://doi.org/10.1186/s12936-021-03699-xMalariaSurveillanceEliminationIntegrated vector management
spellingShingle Theresia Estomih Nkya
Ulrike Fillinger
Makhoselive Dlamini
Onyango P. Sangoro
Rose Marubu
Zulisile Zulu
Emmanuel Chanda
Clifford Maina Mutero
Quinton Dlamini
Malaria in Eswatini, 2012–2019: a case study of the elimination effort
Malaria Journal
Malaria
Surveillance
Elimination
Integrated vector management
title Malaria in Eswatini, 2012–2019: a case study of the elimination effort
title_full Malaria in Eswatini, 2012–2019: a case study of the elimination effort
title_fullStr Malaria in Eswatini, 2012–2019: a case study of the elimination effort
title_full_unstemmed Malaria in Eswatini, 2012–2019: a case study of the elimination effort
title_short Malaria in Eswatini, 2012–2019: a case study of the elimination effort
title_sort malaria in eswatini 2012 2019 a case study of the elimination effort
topic Malaria
Surveillance
Elimination
Integrated vector management
url https://doi.org/10.1186/s12936-021-03699-x
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