Some people cannot have the flu vaccine. You should check with your doctor before deciding to have the flu vaccine if you: have a severe allergy to chicken eggs, have had a severe reaction to a flu vaccination, developed Guillain-Barré syndrome within 6 weeks of receiving a flu vaccine are less than 6 months old, have a fever with a moderate-to-severe illness. You should wait till you recover before being vaccinated.
Attribution: Avallain