Guillain‐Barré Syndrome and Influenza Virus Infection
Open Access
- 1 January 2009
- journal article
- Published by Oxford University Press (OUP) in Clinical Infectious Diseases
- Vol. 48 (1), 48-56
- https://doi.org/10.1086/594124
Abstract
Background. In Western countries, the cause of 60% of all Guillain-Barré syndrome (GBS) cases remains unidentified. The number of cases of unidentified cause peaks in winter, and these cases are commonly preceded by respiratory tract infection or influenza-like illness. We investigated the triggering role of influenza virus infection. Methods. Of 405 patients with GBS who were admitted to a French reference center during 1996–2004, 234 had cases caused by an unidentified agent. We used time-series methods to study the correlation between the monthly incidence of such cases and influenza-like illnesses reported by the Sentinelles surveillance network. We analyzed anti-influenza antibodies using complement fixation testing and hemagglutination-inhibition assays. We studied etiological subgroups using Wilcoxon and Fisher's exact tests. Results. We found a positive association between the monthly incidence of GBS caused by an unidentified agent and reported influenza-like illnesses. Of 73 patients whose cases occurred during periods in which there was a possible link to influenza, 10 (13.7%) had serological evidence of recent influenza A, and 4 (5.5%) had serological evidence of influenza B. Eight of 10 influenza A—related cases occurred during “major” influenza seasons, and antibodies specific to the current epidemic strain were found in 9 cases. Most patients with influenza A—related cases were aged Campylobacter jejuni—related cases, with regard to the lack of need for mechanical ventilation (P=.014), and from the cases caused by an unidentified agent, with regard to the presence of preceding influenza-like illness or respiratory tract infection (P=.015) and longer time from the infectious event to GBS onset (P=.04). Conclusions. Influenza viruses are infrequent triggering agents of GBS but may play a significant role during major influenza outbreaks. Influenza-related GBS displays specific features and is not associated with antiganglioside antibody response, which suggests the presence of underlying immune mechanisms.This publication has 32 references indexed in Scilit:
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