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Figure 2 | Malaria Journal

Figure 2

From: Immunophoretic rapid diagnostic tests as a source of immunoglobulins for estimating malaria sero-prevalence and transmission intensity

Figure 2

Effect of RDT storage conditions on anti-merozoite surface protein (MSP)-1 1–19 titres. RDTs were stored at a range of humidities and temperatures for 7, 31 or 70 days and used a source of antibodies for estimation of anti-MSP-11–19 titres using indirect ELISAs. RDTs were preserved optimally when stored at 4°C (A, D, G) and/or at moderate humidity (D, E, F). Values for high-titre samples decreased slightly with time for RDTs stored at ambient temperature and low humidity (B, C). Values for samples stored at ambient temperature and high humidity were less reproducible and for low-titre samples there were inappropriately high values detected for all time-points (H, I). Values are mean (+/- SD) optical density values from anti-MSP-11–19 ELISAs, normalized against a standard sero-positive plasma pool, for three independent experiments.

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