Is the COVID-19 vaccine booster effective against the Opichron variant?

At present, the situation of prevention and control of the new crown virus pneumonia epidemic in China is grim, the mutation of the new crown virus is generally accelerating, and the number of countries in the world where mutations are found is increasing.

The Henan Provincial Center for Disease Control and Prevention reminds that vaccination against the new crown virus is an effective means to prevent the new crown virus infection and reduce the incidence and severe disease rate of the new crown pneumonia, and it is equally effective to strengthen the treatment of the Aomi Kerong variant strain, so please complete the vaccination of Henan residents who meet the vaccination conditions as soon as possible.

【People over 18 years old, please actively receive the new crown vaccine booster injection】

People over the age of 18 who have been vaccinated with the second dose of the inactivated COVID-19 vaccine produced by Beijing Biology (including Lanzhou Biology, Changchun Biology, Chengdu Biology), Beijing Kexing and Wuhan Biology for half a year, or after receiving the adenovirus vector COVID-19 vaccine produced by CanSino for half a year, can voluntarily go to the COVID-19 vaccination clinic and continue to receive the NEWCOM vaccine reinforced injection free of charge.

As of 10 December, 6 million people over the age of 18 had met the time interval requirement for enhanced immunization.

Those who have completed the enhanced immunization of the new crown vaccine can receive the "Diamond Health Code" on the "Henan Disease Control" public account, 2.13 million people have obtained the "Diamond Health Code", and 33.87 million people are about to unlock the "Diamond Health Code".

【Kexing strengthened needle neutralization and Omiljung positive rate of 94%】

According to a relevant report by the Beijing Daily client, Kexing's preliminary study shows that the positive rate of strengthening needle neutralization and Aomi Kejong antibodies has reached 94%.

"The latest laboratory findings show that 20 doses of CoronaVac and 48 doses of CoronaVac were tested for neutralizing antibodies using one of the Strains of TheOmikeron virus, with a positive rate of 35% of the serum neutralizing antibodies after 20 doses of two doses of the vaccine and a 94% positive rate of serum neutralizing antibodies after 48 doses of three doses of the vaccine." The relevant person in charge of Kexing said that the above results show that the vaccination of the third dose of vaccine can effectively improve the neutralization ability of serum to the Omicron virus strain.

Kexing said that at present, the comparative detection of another strain of Themi kerong virus is underway, and Kexing is conducting further research on more post-immunization time points and serums with different antibody levels to obtain a comprehensive evaluation of the impact of the Aomi kerong virus strain on the vaccine.

According to information updated by the World Health Organization on November 28, scientists still have limited knowledge of Omilon, and it is not clear whether Omilon is more contagious than other variants, including Delta, or whether infection with Omilon causes more serious disease than other variants, including Delta.

Whether Ormicron will affect the effectiveness of current COVID-19 vaccines, tests or treatments still needs to be studied.

【Covid-19 Vaccine Enhanced Needle Hot Q&A】

1. What is a COVID-19 vaccine to boost immunity?

Strengthening immunization refers to the number of vaccine doses that, after completing vaccination, supplementary vaccination according to the situation of antibody regression to maintain the body's immunity to the virus. For example, at this stage, the new crown inactivated vaccine is fully vaccinated with 2 injections, and then one injection is carried out according to the degree of decline in the level of antibodies in the human body.

2. Why should we carry out COVID-19 vaccine to enhance immunization?

After a period of COVID-19 vaccination, there is a weakening of the protective effect, and the strengthening of the vaccination of the needle will cause a "strong rebound" in this decline. According to the research results of Sinopharm Zhongsheng and Beijing Kexing, after vaccination of reinforcing needles, the antibody level of the recipients will be greatly improved. After 14 days of strengthening immunity, the antibody level is equivalent to 10 to 30 times the original, and after 6 months, it can be maintained at a high level.

3. Who can be immunized?

According to the needs of epidemic prevention and control, people aged 18 and above who have completed the full immunization for 6 months can receive intensive injections. Strengthen the vaccination of high-risk groups of infection, key positions to ensure the basic operation of society, and high-risk groups at high risk of severe illness after infection aged 60 and over.

4. Enhanced immune safety?

The results of the study show that there are no serious adverse reactions to boost immunity, and neutralizing antibodies will grow rapidly.

5. How to choose a vaccine for enhanced immunization?

Under the current national vaccination programme, intensive vaccination using the same technical route vaccine is recommended.

For example, 2 doses of inactivated vaccination have been completed, boosters have also been given inactivated vaccines, and priority has been given to boosting immunization with the same vaccine as the second dose of inactivated vaccines.

If, inactivated vaccines with the same dose as the second dose, cannot continue to be available, immunization can be boosted with the same vaccine as the first dose. People vaccinated with adenovirus vectors are still immunized with adenovirus vector vaccines.

Source: Dahe News Yu Video