Heredity in febrile convulsions: is it HLA-dependent?

One hundred children consecutively treated for simple febrile convulsions (FC) were investigated with respect to hereditary factors. Twenty-five of the children had parents or siblings with FC. HLA-typing was performed in all available members of ten families with one or two FC children and one FC parent, and in one family with two FC children but no FC parent. There was no clear association with a particular HLA haplotype in any of these families.