Phytohemagglutinin lymphocyte stimulation in children with recurrent urinary tract infections

The delayed hypersensitivity (T cell) response of children with recurrent urinary tract infections, normal children, and children with other bacterial infections was measured by the ability of their lymphocytes to react to vitro to phytohemagglutinin. A comparison among these three groups demonstrated no differences in response. We conclude that the delayed hypersensitivity response is grossly normal in most children with recurrent urinary tract infections.