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Fig. 2 | BMC Public Health

Fig. 2

From: A comparison of passive surveillance and active cluster-based surveillance for dengue fever in southern coastal Ecuador

Fig. 2

Weekly dengue cases from active and passive surveillance systems in Machala in 2014 and 2015. The number of cases of dengue illness (defined as symptomatic with positive laboratory confirmation) and possible dengue (defined as clinical symptoms only, without warning signs or laboratory confirmation) are shown by epidemiological week in 2014 and 2015 for active surveillance (AS) dengue illness (a,d), passive surveillance (PS) dengue illness (b,e), and PS possible dengue (c,f)

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