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HLA-DR antigens in children with mumps meningitis.

The frequency of HLA-DR antigens was studied in 54 patients with mumps meningitis, and in two control groups. The first control group comprised 333 randomly chosen subjects while the second group was composed of 46 subjects who have passed mumps without meningitis. The DR5 antigen was more frequent in patients than in the second control group with relative risk of 2.4 and significance at the level of p < 0.05. The p value became insignificant after the correction for the number of antigens investigated.