We describe a patient with acute multifocal motor neuropathy with cond
uction block (MMNCB) and high titers of immunoglobulin G anti-GM1 anti
bodies after Campylobacter jejuni enteritis. Treatment with intravenou
s immune globulin led to rapid improvement with return of normal funct
ion by 6 weeks. This is the first report of C. jejuni enteritis preced
ing MMNCB.