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Article
January 22, 1982

Absence of P2 Protein in Swine Flu Vaccines

Author Affiliations

From the Department of Neurology, Medical University of South Carolina, Charleston.

JAMA. 1982;247(4):495. doi:10.1001/jama.1982.03320290041029
Abstract

To test whether possible contamination with the neuritogenic P2 protein from peripheral nerve myelin contributed to the increased incidence of Guillain-Barré syndrome during the national influenza immunization program, monovalent and bivalent vaccines from each manufacturer were tested using a recently developed radioimmunoassay for P2 protein. No P2 protein was found in any of the vaccines tested.

(JAMA 1982;247:495)

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