Figure 4: Immunoblot of proteins from latex and washed rubber particles (WRP) from Hevea brasiliensis (H) and Taraxacum Kok-saghyz (B), using IgE antibodies from two human serum pools. Lane M contains molecular weight markers. F8135 is pooled from 101 patients in a mixed surgical pediatric and adult healthcare worker population. F8137 is pooled from 53 children with spina bifida, 1-16 yrs old.