The flu shot is recommended for almost everyone above 6 months of age. Anyone that is considered at higher risk for the flu (more likely to contract the flu or to experience worse symptoms or side effects) is highly recommended to receive the vaccine to ensure that even if they do contract the flu, the potential for risks is diminished. Those who are considered higher risk and should for sure receive the vaccine include young children, those who have chronic conditions that have weakened immune systems, and those who work with vulnerable populations. The only people for whom the flu vaccine is not recommended are those who have experienced a severe reaction to a previous flu shot. However, not all reactions are caused by the vaccine, so it is important to check with your healthcare provider before going to get the flu shot to ensure that you will not have a severe reaction again.