On December 13, the State Council issued the “Implementation Plan for the Second Dose of New Coronavirus Vaccine Booster Immunization” (hereinafter referred to as “the Plan”) to address the joint prevention and control mechanism of the novel coronavirus pneumonia outbreak.
At this stage, the second dose of booster immunization, or “fourth dose”, can be given to people at high risk of infection, elderly people over 60 years old, people with serious underlying diseases and people with low immunity, based on the first dose of booster immunization.
The “fourth vaccination” is still free of charge.
The program states that the second dose of booster immunization is associated with a total of nine combinations.
- 3 doses of inactivated vaccine + 1 dose of Concionor myeloablative
recombinant neocoronavirus vaccine (adenovirus vector type 5). - 3 doses of inactivated vaccine + 1 dose of Zifiloncoma recombinant
neocoronavirus vaccine (CHO cells) - 3 doses of inactivated vaccine + 1 dose of Recombinant Neocoronavirus
vaccine (type 5 adenovirus vector) for inhalation by Concionor - 3 doses of inactivated vaccine + 1 dose of Zhuhai Lizhu recombinant
neocoronavirus fusion protein (CHO cells) vaccine. - 2 doses of Concionor intramuscular adenovirus vector vaccine + 1 dose of
Concionor recombinant neocoronavirus vaccine for inhalation (type 5
adenovirus vector) - 3 doses of inactivated vaccine + 1 dose of Chengdu Wisk recombinant
neocoronavirus vaccine (sf9 cells) - 3 doses of inactivated vaccine + 1 dose of Beijing Wantai nasal spray
influenza virus vector neo-coronavirus vaccine. - 3 doses of inactivated vaccine + 1 dose of Zhejiang Clover recombinant
neo-coronavirus protein subunit vaccine (CHO cells) - 3 doses of inactivated vaccine + 1 dose of recombinant neo-coronavirus 2-
valent S trimer protein vaccine from CHO cells.
The “fourth dose” gives priority to “sequential booster immunization”, i.e., alternating vaccines of different technical routes, which provides more complete protection.
The interval between the second booster dose and the first booster dose should be at least 6 months.
According to the National Technical Guideline for Vaccination against New Coronavirus (First Edition): People with previous New Coronavirus infection (patients or asymptomatic infected people) can receive one dose after 6 months based on adequate notification.
In other words, if the infection is recent and the body has already produced antibodies to the new crown, then vaccination is not necessary for six months.
During the period of infection, vaccination is also not allowed. (Surfing News, Zhejiang Daily)
