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Figure 6 | Malaria Journal

Figure 6

From: Using serological measures to monitor changes in malaria transmission in Vanuatu

Figure 6

Seroprevalence curves for all P. falciparum antigens for each settlement. Seroprevalence curves represent the rate at which a community becomes seropositive to specific antigens, resulting in a seroconversion rate (SCR) or lambda (λ). A model allowing for a change in transmission intensity at a point in time has been fitted if profile likelihood plots showed a clear peak in log likelihood and if likelihood ratio tests resulted in a p < 0.05. In each graph points represent age seroprevalence (divided into deciles), unbroken lines represent maximum likelihood curves and broken lines 95% confidence intervals. Resulting lambdas (λ) and 95% confidence intervals are shown on seroprevalence curves. The Aneiytum PfAMA seroprevalence is uniformly low across all ages resulting in no seroconversion rate estimate.

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