Generally speaking, eating seafood after vaccination will not make the vaccine ineffective. Vaccines mainly work on the body’s immune system, stimulating the immune system to secrete specific antibodies against certain diseases, so as to achieve the purpose of preventing infectious diseases, eating seafood will not affect the vaccine to play the role of immunization. After vaccination, the doctor may tell the vaccinee to avoid eating seafood, mainly because seafood contains more heterogeneous proteins, histamine and other substances, if eaten in excess, in addition to easy to cause nausea, vomiting, abdominal pain, diarrhea, indigestion and other gastrointestinal discomforts, it may also induce allergic reactions, cause or aggravate the redness, swelling and pain at the site of vaccination, fever, headache, skin rash or even edema of the larynx, respiratory difficulties, anaphylactic shock and other symptoms. , anaphylactic shock and other symptoms. These symptoms may be confused with adverse reactions caused by vaccination, which may easily lead to misjudgment. Therefore, doctors do not recommend eating seafood after vaccination. However, eating seafood will not have much effect on the effectiveness of the vaccine. It is recommended that vaccinated people try not to consume seafood, but of course, if they have already eaten it and have not experienced any adverse reactions, there is no need to be particularly worried. Because seafood as a food, if one is not allergic to seafood, moderate or small amount of consumption usually does not have significant effect on the body. Within 1 week after vaccination, you should pay attention to a light diet, you can eat millet porridge, noodle soup and other easily digestible food, increase the intake of fresh fruits and vegetables, such as rape, broccoli, apples, bananas, etc., and avoid other stimulating foods, such as chili peppers, onions, garlic, pepper and so on. Avoid smoking and drinking alcohol, and avoid using hormone drugs as well as immunosuppressants.