Accelerating malaria elimination in Cambodia: an intensified approach for targeting at-risk populations

Abstract Background Malaria in Cambodia has decreased by 90.8% between 2010 and 2020, driven by the commitment of the National Center for Parasitology, Entomology and Malaria (CNM) and the achievements of the roll-out of a village malaria worker programme. However, in the first seven months of 2018,...

Full description

Bibliographic Details
Main Authors: Siv Sovannaroth, Pengby Ngor, Vichka Khy, Julia C. Dunn, Michelle K. Burbach, Sovann Peng, Sarath Mak, Krung Siv, Giulia Manzoni, Jean Olivier Guintran, Luciano Tuseo, Rekol Huy
Format: Article
Language:English
Published: BMC 2022-07-01
Series:Malaria Journal
Online Access:https://doi.org/10.1186/s12936-022-04234-2
_version_ 1818488359190790144
author Siv Sovannaroth
Pengby Ngor
Vichka Khy
Julia C. Dunn
Michelle K. Burbach
Sovann Peng
Sarath Mak
Krung Siv
Giulia Manzoni
Jean Olivier Guintran
Luciano Tuseo
Rekol Huy
author_facet Siv Sovannaroth
Pengby Ngor
Vichka Khy
Julia C. Dunn
Michelle K. Burbach
Sovann Peng
Sarath Mak
Krung Siv
Giulia Manzoni
Jean Olivier Guintran
Luciano Tuseo
Rekol Huy
author_sort Siv Sovannaroth
collection DOAJ
description Abstract Background Malaria in Cambodia has decreased by 90.8% between 2010 and 2020, driven by the commitment of the National Center for Parasitology, Entomology and Malaria (CNM) and the achievements of the roll-out of a village malaria worker programme. However, in the first seven months of 2018, CNM identified a 207% increase (11,969 to 36,778) in confirmed malaria cases compared to the same months in the previous year. To address this increase, CNM developed the “Intensification Plan” (IP), implemented between October 2018 and December 2020. Methods The structure of the IP was summarized, including the selection of sites, the interventions implemented in the selected health facility catchment areas (HFCAs) and the monitoring and evaluation process. Data on IP interventions were collected by CNM and civil society organisations. Data on malaria cases and tests from all HFCAs in Cambodia from January 2018 to December 2020 were sourced from the Cambodia Malaria Information System (MIS) and WHO Malaria Elimination Database. Malaria data from IP HFCAs and non-IP HFCAs was analysed and compared to present the changes in malaria testing and confirmed cases before and during implementation of the IP. Results Between October 2018 and December 2020, through the IP 16,902 forest packs and 293,090 long-lasting insecticide treated nets were distributed. In the 45 HFCAs included in the IP, 431,143 malaria tests were performed and 29,819 malaria cases were diagnosed, 5364 (18%) of which were Plasmodium falciparum/mixed cases. During the intervention period, over all HFCAs included in IP, P. falciparum/mixed cases declined from 1029 to 39, a 96.2% decrease, and from 25.4 P. falciparum/mixed cases per HFCA to 0.9. HFCAs not included in IP declined from 468 to 43 cases, a 90.8% decrease, showing that routine malaria activities in Cambodia were also playing an important contribution to malaria control. Conclusions Over the course of IP implementation there was a substantial increase in malaria testing and both overall malaria cases and P. falciparum/mixed cases decreased month on month. The initiative yields lessons learned for Cambodia to reach the final stage of elimination as well as for other countries aiming to accelerate their malaria control programmes.
first_indexed 2024-12-10T16:50:05Z
format Article
id doaj.art-2cb40b194137417b8e1f275c73148ab4
institution Directory Open Access Journal
issn 1475-2875
language English
last_indexed 2024-12-10T16:50:05Z
publishDate 2022-07-01
publisher BMC
record_format Article
series Malaria Journal
spelling doaj.art-2cb40b194137417b8e1f275c73148ab42022-12-22T01:40:55ZengBMCMalaria Journal1475-28752022-07-0121111110.1186/s12936-022-04234-2Accelerating malaria elimination in Cambodia: an intensified approach for targeting at-risk populationsSiv Sovannaroth0Pengby Ngor1Vichka Khy2Julia C. Dunn3Michelle K. Burbach4Sovann Peng5Sarath Mak6Krung Siv7Giulia Manzoni8Jean Olivier Guintran9Luciano Tuseo10Rekol Huy11National Center for Parasitology, Entomology and Malaria Control (CNM)National Center for Parasitology, Entomology and Malaria Control (CNM)Clinton Health Access InitiativeClinton Health Access InitiativeClinton Health Access InitiativeCatholic Relief ServicesPSIUSAID/PMI/URCWorld Health OrganizationWorld Health OrganizationWorld Health OrganizationNational Center for Parasitology, Entomology and Malaria Control (CNM)Abstract Background Malaria in Cambodia has decreased by 90.8% between 2010 and 2020, driven by the commitment of the National Center for Parasitology, Entomology and Malaria (CNM) and the achievements of the roll-out of a village malaria worker programme. However, in the first seven months of 2018, CNM identified a 207% increase (11,969 to 36,778) in confirmed malaria cases compared to the same months in the previous year. To address this increase, CNM developed the “Intensification Plan” (IP), implemented between October 2018 and December 2020. Methods The structure of the IP was summarized, including the selection of sites, the interventions implemented in the selected health facility catchment areas (HFCAs) and the monitoring and evaluation process. Data on IP interventions were collected by CNM and civil society organisations. Data on malaria cases and tests from all HFCAs in Cambodia from January 2018 to December 2020 were sourced from the Cambodia Malaria Information System (MIS) and WHO Malaria Elimination Database. Malaria data from IP HFCAs and non-IP HFCAs was analysed and compared to present the changes in malaria testing and confirmed cases before and during implementation of the IP. Results Between October 2018 and December 2020, through the IP 16,902 forest packs and 293,090 long-lasting insecticide treated nets were distributed. In the 45 HFCAs included in the IP, 431,143 malaria tests were performed and 29,819 malaria cases were diagnosed, 5364 (18%) of which were Plasmodium falciparum/mixed cases. During the intervention period, over all HFCAs included in IP, P. falciparum/mixed cases declined from 1029 to 39, a 96.2% decrease, and from 25.4 P. falciparum/mixed cases per HFCA to 0.9. HFCAs not included in IP declined from 468 to 43 cases, a 90.8% decrease, showing that routine malaria activities in Cambodia were also playing an important contribution to malaria control. Conclusions Over the course of IP implementation there was a substantial increase in malaria testing and both overall malaria cases and P. falciparum/mixed cases decreased month on month. The initiative yields lessons learned for Cambodia to reach the final stage of elimination as well as for other countries aiming to accelerate their malaria control programmes.https://doi.org/10.1186/s12936-022-04234-2
spellingShingle Siv Sovannaroth
Pengby Ngor
Vichka Khy
Julia C. Dunn
Michelle K. Burbach
Sovann Peng
Sarath Mak
Krung Siv
Giulia Manzoni
Jean Olivier Guintran
Luciano Tuseo
Rekol Huy
Accelerating malaria elimination in Cambodia: an intensified approach for targeting at-risk populations
Malaria Journal
title Accelerating malaria elimination in Cambodia: an intensified approach for targeting at-risk populations
title_full Accelerating malaria elimination in Cambodia: an intensified approach for targeting at-risk populations
title_fullStr Accelerating malaria elimination in Cambodia: an intensified approach for targeting at-risk populations
title_full_unstemmed Accelerating malaria elimination in Cambodia: an intensified approach for targeting at-risk populations
title_short Accelerating malaria elimination in Cambodia: an intensified approach for targeting at-risk populations
title_sort accelerating malaria elimination in cambodia an intensified approach for targeting at risk populations
url https://doi.org/10.1186/s12936-022-04234-2
work_keys_str_mv AT sivsovannaroth acceleratingmalariaeliminationincambodiaanintensifiedapproachfortargetingatriskpopulations
AT pengbyngor acceleratingmalariaeliminationincambodiaanintensifiedapproachfortargetingatriskpopulations
AT vichkakhy acceleratingmalariaeliminationincambodiaanintensifiedapproachfortargetingatriskpopulations
AT juliacdunn acceleratingmalariaeliminationincambodiaanintensifiedapproachfortargetingatriskpopulations
AT michellekburbach acceleratingmalariaeliminationincambodiaanintensifiedapproachfortargetingatriskpopulations
AT sovannpeng acceleratingmalariaeliminationincambodiaanintensifiedapproachfortargetingatriskpopulations
AT sarathmak acceleratingmalariaeliminationincambodiaanintensifiedapproachfortargetingatriskpopulations
AT krungsiv acceleratingmalariaeliminationincambodiaanintensifiedapproachfortargetingatriskpopulations
AT giuliamanzoni acceleratingmalariaeliminationincambodiaanintensifiedapproachfortargetingatriskpopulations
AT jeanolivierguintran acceleratingmalariaeliminationincambodiaanintensifiedapproachfortargetingatriskpopulations
AT lucianotuseo acceleratingmalariaeliminationincambodiaanintensifiedapproachfortargetingatriskpopulations
AT rekolhuy acceleratingmalariaeliminationincambodiaanintensifiedapproachfortargetingatriskpopulations