Fig. 2From: Guillain-Barré syndrome following the 2009 pandemic monovalent and seasonal trivalent influenza vaccination campaigns in Spain from 2009 to 2011: outcomes from active surveillance by a neurologist network, and records from a country-wide hospital discharge databaseSeasonal patterns of Guillain-Barré syndrome (GBS) according to the neurologist network. Top: monthly incidence of GBS in two age groups. Bottom: case distribution by type of preceding infection and month of clinical onsetBack to article page