Figure 2
![Figure 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1475-2875-10-104/MediaObjects/12936_2011_Article_1702_Fig2_HTML.jpg)
Scatterplots showing relationship between paired antibody titres from plasma and saliva to P. falciparum merozoite surface antigen MSP-1 19 in a) Tanzania and b) The Gambia. In plot a) open red circles represent measures by OraSure and blue circles by OraCol.