Highly targeted spatiotemporal interventions against cholera epidemics, 2000–19: a scoping review - 25/02/21
, Flavio Finger, PhD c, Andrew S Azman, PhD d, e, Daniele Lantagne, PhD f, Sebastian Funk, PhD a, W John Edmunds, ProfPhD a, b, Francesco Checchi, ProfPhD aSummary |
Globally, cholera epidemics continue to challenge disease control. Although mass campaigns covering large populations are commonly used to control cholera, spatial targeting of case households and their radius is emerging as a potentially efficient strategy. We did a Scoping Review to investigate the effectiveness of interventions delivered through case-area targeted intervention, its optimal spatiotemporal scale, and its effectiveness in reducing transmission. 53 articles were retrieved. We found that antibiotic chemoprophylaxis, point-of-use water treatment, and hygiene promotion can rapidly reduce household transmission, and single-dose vaccination can extend the duration of protection within the radius of households. Evidence supports a high-risk spatiotemporal zone of 100 m around case households, for 7 days. Two evaluations separately showed reductions in household transmission when targeting case households, and in size and duration of case clusters when targeting radii. Although case-area targeted intervention shows promise for outbreak control, it is critically dependent on early detection capacity and requires prospective evaluation of intervention packages.
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Vol 21 - N° 3
P. e37-e48 - mars 2021 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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