Anaphylaxis is a severe, sometimes life-threatening, allergic reaction that affects the whole body.
Acute Disseminated Encephalomyelitis (ADEM) is an inflammatory disease of the central nervous system that attacks myelin. When the myelin is damaged this transmission is affected and the conduction of nerve signals can be disrupted or lost.
SIRVA is shoulder pain after vaccination caused by the vaccine injection itself.
Guillain-Barre Syndrome (GBS) is a rare autoimmune disorder in which a person’s own immune system mounts an inflammatory response and causes damage to his or her peripheral nerves.