Fig. 2From: Using cluster analysis to reconstruct dengue exposure patterns from cross-sectional serological studies in SingaporeMedian (bold line), interquantiles (box), range (vertical line) and outliers (points) of the log10 PRNT50 titres against DENV1-4 characterising the six clusters obtained with the K-means algorithm. The colours blue, grey, green and blown represent DENV1, DENV2, DENV3 and DENV4, respectivelyBack to article page