Fig. 3

Frequency distribution of the 3 clusters. Stratification was by age and gender. In cluster 1, the dominant allergens are mopane worm and mopane leaves. In cluster 2, the dominant allergens were Tyrophagus putrescentiae and Alternaria alternata and in cluster 3, the dominant allergens were mopane worm, mopane leaves, Tyrophagus putrescentiae and Trees mixture