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Table 1 Prevalence surveys conducted in Riaba district in 2019

From: Malaria outbreak in Riaba district, Bioko Island: lessons learned

Survey

Dates

Sample

Age range

Sample size

Positive (% [95CI])

Outbreak

22–30 Apr

All present

All ages

2105

783 (37.2 [35.1–39.3])

MIS

12–18 Aug

Representative

All ages

571

117 (20.5 [17.3–24.0])

  1. The outbreak survey was part of a test and treat strategy. MIS are implemented annually on Bioko since 2004 and, in 2019, this survey served as a follow up to the outbreak survey