Vaccination (both IIV and LAIV) should be avoided in people who Previously had a severe reaction to influenza vaccine Developed Guillain-Barré syndrome (GBS) within 6 weeks of a previous influenza vaccination (it is not known whether influenza vaccination increases risk of recurrent GBS in patients who have previously had GBS that was not related to influenza vaccination) Have had GBS in the previous 6 weeks, regardless of cause Are < 6 months old Any of the influenza vaccines can be given to patients with a history of egg allergy, except to patients who have had a severe allergic reaction to a previous influenza vaccination, which is a contraindication to receiving the vaccine.