scholarly journals Evaluation of the effect of supervised anti-malarial treatment on recurrences of Plasmodium vivax malaria

2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Kelry Mazurega Oliveira Dinelly ◽  
Sheila Vitor-Silva ◽  
Jose Diego Brito-Sousa ◽  
Vanderson Souza Sampaio ◽  
Milena Gabriela Oliveira Silva ◽  
...  

Abstract Background Relapses in vivax malaria have posed great challenges for malaria control, and they also account for a great proportion of reported cases. Knowing the real effectiveness of a 7-day primaquine (PQ) scheme is crucial in order to evaluate not only the cost-effectiveness of implementing new anti-hypnozoite drugs, but also how health education strategies can guarantee better compliance and be reinforced. This study aimed to evaluate the effect of daily treatment with chloroquine and PQ supervised by health workers versus prescription without supervision. Methods The outcome was the passive detection of new positive thick blood smears up to 180 days, based on the official data records from the National Malaria Control Programme. The recurrences seen in the real life were, therefore, used as a surrogate for true relapses. Results Patients under supervised treatment had a lower risk of recurrence up to day 180 when compared to the unsupervised treatment (17.9% vs. 36.1%; p = 0.027). Conclusions The lack of supervision in the non-supervised group (which followed standard of care in the real life) enabled proper comparison, as consent itself would have lead to greater compliance in this group. Future studies should scale such an analysis to different settings in the Brazilian Amazon.

2021 ◽  
Author(s):  
Kelry Mazurega Oliveira Dinelly ◽  
Sheila Vitor-Silva ◽  
Jose Diego Brito-Sousa ◽  
Vanderson Souza Sampaio ◽  
Milena Gabriela Oliveira Silva ◽  
...  

Abstract BackgroundRelapses in vivax malaria have posed great challenges to malaria control, accounting for a great proportion of reported cases. Knowing the real effectiveness of 7 day primaquine (PQ) scheme is crucial to understand not only the cost-effectiveness of implementing new anti-hypnozoite drugs but how health education strategies can guarantee better compliance and be reinforced. This study aimed the evaluation of the daily supervised treatment effect with chloroquine and PQ (in consented patients) versus prescription without supervision (non-consented patients), and the outcome was the passive detection of new positive thick blood smears until 180 days, based on the official data records from the National Malaria Control Program. The recurrences seen in the real life were therefore used as a surrogate for true relapses. Patients under supervised treatment had a lower risk of recurrence until day 180 when compared to the unsupervised treatment (17.9% vs 36.1%; p=0.027). The lack of consent in the non-supervised group (which followed standard of care in the real life) enabled proper comparison, as consent itself could lead to better compliance in this group. Future studies should scale such analysis to different settings in the Brazilian Amazon.


2020 ◽  
Author(s):  
Lisbeth Hurtado ◽  
Alberto Cumbreras ◽  
Chystrie Rigg ◽  
Milixa Perea ◽  
Ana María Santamaría ◽  
...  

Abstract Background: The present study provides a countrywide perspective of the malaria situation in Panama over a long-term framework, with the purpose of identifying historical malaria resurgence events and their potential causes.Methods: A descriptive-ecological study was conducted by analyzing demographic and epidemiological annual malaria time series data in Panamá (1884 – 2019) using several data sources. Malaria intensity indicators were calculated during the study period. We also analyze the effects of El Niño Southern Oscillation on malaria transmission using a retrospective analysis of malaria cases between 1957 and 2019.Results: Several factors were identified responsible for malaria resurgence in Panama, mostly related with Malaria Control Programme weakening. During the past 20 years (2000 – 2019) malaria has progressively increased its prevalence within indigenous settlements, with a predominance of male cases and a high proportion (15% of total cases) in children less than 5 years old. During this period a significant and increasing proportion of the P. falciparum total cases were imported. Our retrospective analysis (1957 - 2019) evidenced that ENSO has a significant impact on malaria transmission dynamics in Panama.Conclusions: Data analysis confirmed that although authorities have been successful in focalizing malaria transmission in the country, there are still neglected issues to be solved and important intercultural barriers that need to be addressed in order to achieve elimination of the disease by 2022. This information will be useful for targeting strategies by the National Malaria Control Programme.


2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Emmanuel Chanda ◽  
Mulakwa Kamuliwo ◽  
Richard W. Steketee ◽  
Michael B. Macdonald ◽  
Olusegun Babaniyi ◽  
...  

The Zambian national malaria control programme has made great progress in the fight against Malaria. The country has solid, consistent, and coordinated policies, strategies, and guidelines for malaria control, with government prioritizing malaria in both the National Health Strategic Plan and the National Development Plan. This has translated into high coverage of proven and effective key preventive, curative, and supportive interventions with concomitant marked reduction in both malaria cases and deaths. The achievements attained can be attributed to increased advocacy, communication and behaviour changes, efficient partnership coordination including strong community engagement, increased financial resources, and evidence-based deployment of key technical interventions in accordance with the national malaria control programme policy and strategic direction. The three-ones strategy has been key for increased and successful public-private sector partner coordination, strengthening, and mobilization. However, maintaining the momentum and the gains is critical as the programme strives to achieve universal coverage of evidence-based and proven interventions. The malaria control programme’s focus is to maintain the accomplishments, by mobilizing more resources and partners, increasing the government funding towards malaria control, scaling up and directing interventions based on epidemiological evidence, and strengthen active malaria surveillance and response to reduce transmission and to begin considering elimination.


2020 ◽  
Author(s):  
Lisbeth Hurtado ◽  
Alberto Cumbrera ◽  
Chystrie Rigg ◽  
Milixa Perea ◽  
Ana María Santamaría ◽  
...  

Abstract Background: The present study provides a countrywide perspective of the malaria situation in Panama over a long-term framework, with the purpose of identifying historical malaria resurgence events and their potential causes. Methods: A descriptive-ecological study was conducted by analyzing demographic and epidemiological annual malaria time series data in Panamá (1884 – 2019) using several data sources. Malaria intensity indicators were calculated during the study period. We also analyze the effects of El Niño Southern Oscillation on malaria transmission using a retrospective analysis of malaria cases between 1957 and 2019. Results: Several factors were identified responsible for malaria resurgence in Panama, mostly related with Malaria Control Programme weakening. During the past 20 years (2000 – 2019) malaria has progressively increased its prevalence within indigenous settlements, with a predominance of male cases and a high proportion (15% of total cases) in children less than 5 years old. During this period a significant and increasing proportion of the P. falciparum total cases were imported. Our retrospective analysis (1957 - 2019) evidenced that ENSO has a significant impact on malaria transmission dynamics in Panama. Conclusions: Data analysis confirmed that although authorities have been successful in focalizing malaria transmission in the country, there are still neglected issues to be solved and important intercultural barriers that need to be addressed in order to achieve elimination of the disease by 2022. This information will be useful for targeting strategies by the National Malaria Control Programme.


2020 ◽  
Author(s):  
Lisbeth Hurtado ◽  
Alberto Cumbrera ◽  
Chystrie Rigg ◽  
Milixa Perea ◽  
Ana María Santamaría ◽  
...  

Abstract Background: The present study provides a countrywide perspective of the malaria situation in Panama over a long-term framework, with the purpose of identifying historical malaria resurgence events and their potential causes. Methods: A descriptive-ecological study was conducted by analyzing demographic and epidemiological annual malaria time series data in Panamá (1884 – 2019) using several data sources. Malaria intensity indicators were calculated during the study period. We also analyze the effects of El Niño Southern Oscillation on malaria transmission using a retrospective analysis of malaria cases between 1957 and 2019. Results: Several factors were identified responsible for malaria resurgence in Panama, mostly related with Malaria Control Programme weakening. During the past 20 years (2000 – 2019) malaria has progressively increased its prevalence within indigenous settlements, with a predominance of male cases and a high proportion (15% of total cases) in children less than 5 years old. During this period a significant and increasing proportion of the P. falciparum total cases were imported. Our retrospective analysis (1957 - 2019) evidenced that ENSO has a significant impact on malaria transmission dynamics in Panama. Conclusions: Data analysis confirmed that although authorities have been successful in focalizing malaria transmission in the country, there are still neglected issues to be solved and important intercultural barriers that need to be addressed in order to achieve elimination of the disease by 2022. This information will be useful for targeting strategies by the National Malaria Control Programme.


2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Tete S. Amouh ◽  
Saidou Malam Ekoye ◽  
Césaire D. Ahanhanzo ◽  
Tinga Robert Guiguemdé ◽  
Issiaka Sombié

Abstract Background To strengthen the fight against malaria, it is imperative to identify weaknesses and possible solutions in order to improve programmes implementation. This study reports experiences gained from collaboration between decision-makers and researchers from a World Bank project (Malaria and Neglected Tropical Diseases in the Sahel, SM/NTD). The objectives of this paper were to identify bottlenecks in malaria programme implementation as well as related research questions they bring up. Methods Questionnaire addressed to National Malaria Control Programme managers and prioritization workshops were used as a medium to identify research questions. The bottlenecks in malaria programme implementation were identified in seven thematic areas namely governance, human resources, drugs, service provision, use of prevention methods, monitoring and evaluation (M and E), and public support or buy-in. The first five priority questions were: (1) compliance with drug doses on the second and third days during the seasonal chemoprevention (SMC) campaigns, (2) the contribution of community-based distributors to the management of severe cases of malaria in children under 5 years, (3) the SMC efficacy, (4) artemisinin-based combination therapy (ACT) tolerance and efficacy according to existing guidelines, and (5) the quality of malaria control at all levels of the health system. Results and conclusion This work showed the effectiveness of collaboration between implementers, programmes managers, and researchers in identifying research questions. The responses to these identified research questions of this study may contribute to improving the implementation of malaria control programmes across African countries.


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