Performance and feasibility of reactive surveillance and response strategies for malaria elimination in Vietnam: a mixed-methods study

Malaria Journal

Research

Nilar Aye Tun¹  Xuan Thang Nguyen²  T Hong Phuc Nguyen²  Duc Thang Ngo²  Julia Cutts³  Katherine O’Flaherty³  Freya J. I. Fowkes⁴  Paul A. Agius⁵  Thi Van Anh Ngo⁶ 

[1] Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, VIC, Australia;Department of Epidemiology, National Institute of Malariology, Parasitology and Entomology, Hanoi, Vietnam;Disease Elimination Programme, Burnet Institute, 85 Commercial Rd, Melbourne, VIC, Australia;Disease Elimination Programme, Burnet Institute, 85 Commercial Rd, Melbourne, VIC, Australia;Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, VIC, Australia;Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, VIC, Australia;Disease Elimination Programme, Burnet Institute, 85 Commercial Rd, Melbourne, VIC, Australia;Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, VIC, Australia;Health Poverty Action, Hanoi, Vietnam;

关键词: Case notification;    Case investigation;    Focus investigation;    Malaria elimination;    Reactive surveillance and response;    Reactive case detection;    Vietnam;   

DOI  :  10.1186/s12936-023-04660-w

 received in 2023-02-13, accepted in 2023-07-27,  发布年份 2023

来源: Springer

【 摘 要 】

BackgroundTo enhance malaria elimination, Vietnam adopted a Reactive Surveillance and Response (RASR) Strategy in which malaria case notification and investigation must be completed within 2 days followed by a focus investigation within 7 days. The nationwide performance of Vietnam’s RASR strategy has yet to be evaluated. This study aims to evaluate the performance and feasibility of RASR in Vietnam, thereby providing recommendations for improved RASR.MethodsTo assess malaria RASR in Vietnam, a mixed-methods study of (1) secondary data analysis of nationwide malaria case-based dataset from 2017 to 2021; (2) a quantitative survey, and (3) qualitative in-depth interviews and focus group discussions administered to central, provincial and district level stakeholders/staff and to the commune and community level front line health services providers was conducted.ResultsIn Vietnam, there are guidelines and procedures for implementation of each step of RASR. The completeness of case notification on the reported monthly aggregated data was very high in both the paper-based (12,463/12,498, 99.7% in 2017–2020) and electronic reporting systems (467/467, 100% in 2021 when electronic reporting was introduced); however, there were delays in notification while using the paper-based system (timely notification—7,978/12,498, 63.8%). In 2021, the completeness (453/467, 97.0%) and timeliness (371/467, 79.4%) of case investigation were found to be high. Reactive case detection was the major focus investigation response, with fever screening achievement of 88.6% (11,481 / 12,965) and 88.5% (11,471 / 12,965) among index case and neighbouring household members, respectively.ConclusionsOverall, there was policy commitment for implementation of RASR in Vietnam. The completeness and timeliness of case notification and case investigation were high and improved after the introduction of the electronic reporting system. More evidence is required for reactive case detection in defining the screening area or population.

【 授权许可】

CC BY   
© BioMed Central Ltd., part of Springer Nature 2023

【 图 表 】

Fig. 4