you should not get the influenza vaccine if you: are severely allergic to eggs developed guillain-barre syndrome within six weeks of receiving the flu vaccine in the past had a severe reaction to the flu vaccine in the past have a severe allergy to any vaccine component the nasal spray flu vaccine can only be used in healthy younger adults who are not pregnant. in addition to the previously listed adults who should not receive the flu shot adults should not get the nasal spray influenza vaccine if they: are pregnant are age 50 or older have a weakened immune system due to disease or certain medical treatments have a long-term health condition such as those with diabetes kidney disease or heart or lung disease including asthma have a muscle or nerve condition that can cause problems with breathing or swallowing (such as epilepsy or cerebral palsy) have a nasal condition that could make breathing difficult you should not get the nasal spray flu vaccine if you are in contact with people who have a severely weakened immune system. if you are moderately to severely ill your doctor may recommend waiting to get the shot until after you recover. the cdc says you can still get the vaccine if you have a mild illness such as a cold or low-grade fever. if you have a stuffy nose your doctor may recommend that you wait to get the nasal spray flu vaccine or get the flu shot instead.
which adults should not get the flu vaccine?