In principle, the HFMD vaccine and the Group A influenza vaccine can be administered together, and there are no clear contraindications between them, but it is recommended to administer the vaccines separately. HFMD vaccine is mainly used for the prevention of hand, foot and mouth disease, after vaccination, redness, swelling, pain, itching and other symptoms may occur, usually can disappear by itself. group A influenza vaccine is mainly used for the prevention of epidemic cerebrospinal meningitis, after vaccination, redness, low fever, hardness, allergy and other adverse reactions may occur. There is no clear evidence that it is not possible to receive HFMD vaccine and Group A RHD vaccine at the same time, but it cannot be ruled out that after simultaneous vaccination, the chance of adverse reactions is higher than that of separate vaccination, and it may even be aggravated, so it is recommended to take half a month interval between one of the vaccines and the other vaccine.