Fig. 4
From: Serological measures to assess the efficacy of malaria control programme on Ambae Island, Vanuatu
Trends in age-seroprevalence curves and seroconversion rates (SCRs) for all P. falciparum and P. vivax antigens on Ambae Island. SCR or lambda (λ) was estimated by fitting reversible catalytic conversion models to data from all available age groups. Resulting SCRs and 95% confidence intervals for both years (2003 and 2007) are presented on the graph. The P. falciparum fixed seroreversion rates (SRRs) for PfSE, PfMSP-119 and, PfAMA-1 were 0.001 year-1 (0.000–0.388), 0.072 year-1 (0.042–0.125) and, 0.196 year-1 (0.096–0.402), respectively. The P. vivax fixed SRRs for PvSE, PvMSP-119 and, PfAMA-1 were 0.016 year-1 (0.004–0.063), 0.015 year-1 (0.003–0.078) and, 0.042 year-1 (0.014–0.131), respectively