The three doses of the New Crown vaccine, known as the recombinant subunit vaccine, need to be administered at least 28 days (4 weeks) apart from the two adjacent doses. The second dose must be completed within 2 months after completion of the first dose; the third dose must be completed within 6 months after completion of the first dose, which means that all three doses must be completed within six months. Before the inoculation, patients should get enough rest and sleep to keep their body in the best condition. After the inoculation is completed, some of the inoculated patients may experience a series of adverse reactions, such as mild fever, fatigue, pain at the inoculation site and other symptoms. These are common adverse reactions and can usually be relieved after 3~5 days. If the symptoms persist and cannot be relieved, please go to the hospital immediately for formal examination so as not to miss the best time for treatment.