Immunological studies of cerebrospinal fluid from patients with CNS symptoms after human papillomavirus vaccination Highlights •32 patients with prolonged CNS symptoms after HPV vaccination were studied. •CSF levels of IL-4, IL-13, IL-17, IL-8 and MCP-1 were elevated. •CSF levels of PDGF-bb and IL-12 were decreased. •Antibodies to GluN2B-NT2, GluN2B-CT and GluN1-NT in CSF were increased. […]