Outbreaks of Guillain-Barré syndrome (GBS) are uncommon. In May 2019, national surveillance in Peru detected an increase in GBS cases in excess of the expected incidence of 1.2 cases/100,000 population. Several clinical and epidemiologic findings call into question the suggested association between this GBS outbreak and Campylobacter.
Keywords: Campylobacter; Guillain-Barré syndrome; Peru; acute flaccid paralysis; bacteria; enteric infections; outbreak; zoonoses.