evidence: Very rare neurological complications of vaccination include neuroimmunological conditions such as Guillain–Barré syndrome, acute disseminated encephalomyelitis and narcolepsy, and neurovascular conditions such as cerebral venous sinus thrombosis and stroke. [...] Costales, C. et al. Vaccine-associated measles encephalitis in immunocompromised child, California, USA. Emerg. Infect. Dis.28, 906–908 (2022). [...] Kornum, B. R. et al. Narcolepsy. Nat. Rev. Dis. Prim.3, 16100 (2017).