You can eat hamburger after the vaccination and it will not affect the vaccine effect.
There are no dietary contraindications to the new crown vaccination, normal diet does not affect the vaccine effect, and there is no need to change the original lifestyle habits. However, if the vaccinated person belongs to the allergic body, one week after the vaccination should try to avoid contact with already known allergens, it is recommended that after the vaccination try not to drink alcohol, do not eat spicy and stimulating food, eat a light diet, drink plenty of water, and rest appropriately.
Some people may have gastrointestinal reactions such as loss of appetite and nausea after receiving the new crown vaccine, so they can eat burgers, but in moderation, and it is best to consume light and easily digestible foods to avoid aggravating gastrointestinal reactions. If the discomfort is severe, prompt medical attention is recommended.