Can the third injection of COVID-19 be administered 14 days apart? Will the COVID-19 vaccine lose efficacy if the interval is too long

Can COVID-19 vaccine be taken every 14 days?

The vaccine cannot be taken every 14 days. Generally, vaccination should be administered on time for at least 28 days. If the vaccine is delayed for a long time due to special circumstances, early vaccination can be administered in a short period of time to produce effective antibodies and achieve the effect of preventing infectious diseases. However, it should be noted that if it is different vaccines, two doses can be administered to different parts of the body on the same day or every 15 days, that is, different vaccines can be injected every half month. However, vaccines of the same type must be administered at least 28 days apart. Vaccines can be delayed, but not in advance. So it is important to be aware that vaccines cannot be administered with a 14 day interval. Will the vaccine fail if the interval is too long? The interval between the second and first doses of the vaccine should not be less than 4 weeks, and the interval between the third and second doses should not be less than 12 weeks. The interval between the third and first doses should not be less than 5 months, and it is recommended that all 3 doses be completed within 12 months.