Accepted for/Published in: iProceedings
Date Submitted: Jan 19, 2022
Open Peer Review Period: Jan 19, 2022 - Jan 19, 2022
Date Accepted: Jan 19, 2022
(closed for review but you can still tweet)
Evaluation of Dengue Surveillance System, Yemen, Hodeiadah, 2021
ABSTRACT
Background:
The number of dengue cases reported to World Health Organization (WHO) increased over 8 fold over the last two decades, from 2.4 million in 2010 to 4.2 million in 2019. In Yemen, from January to December 2019, 59,486 suspected dengue cases and 219 deaths with a case fatality rate (CFR) 0.4% were reported. The dengue surveillance system (DSS) provides necessary information for outbreak response. As there was an increase in the number of dengue outbreaks especially in Hodeida last year, therefore it's worthy to evaluate the DSS.
Objective:
Evaluate the DSS between January and March 2021 to assess its usefulness, performance of the system and identify strengths and weaknesses
Methods:
We used the Centers for Disease Control (CDC) Updated Guidelines for Evaluation of Surveillance systems. For data collection desk review and interviews with stakeholders at a central level were conducted, semi-structured questionnaires distributed for the sentinel site’s coordinators. Indicators were developed to evaluate the usefulness and the eight attributes: flexibility, stability, simplicity, acceptability, sensitivity. Score percent was calculated and interpreted as poor <60%, average: 60 - <80%, and good: ≥ 80%
Results:
: the DSS found to be useful (i.e. using the data for detecting changes in trends of morbidity and mortality.). Regarding system attributes, flexibility (22.7%), stability (33.3%). Sensitivity (76%) and data quality (31%) were poor, while simplicity (79%), acceptability (76%), and representativeness (65%) were average. The overall DSS performance was poor (47%).
Conclusions:
The DSS was useful. Although acceptability and representativeness were average, flexibility stability, sensitivity and data quality were poor. Strengthening the DSS through providing basic infrastructure ,ensure sustainability, improve supplement and supervision of laboratory testing for dengue fever and expanding DSS coverage to include private health care facilities are necessary. For data quality, supervision and training is recommended
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