On February 22, the reporter learned from the Zhongshan Municipal Center for Disease Control and Prevention that the masses who had previously received two injections of Shenzhen Kangtai's new crown vaccine in Zhongshan could go to the "reinforcing needle". "Previously, the state's 'strengthening needle' for Shenzhen Kangtai's new crown vaccine has not yet been guided, so about 800,000 people have received the basic immunization of Kangtai's new crown vaccine in Zhongshan, that is, 2 injections. At present, about 300,000 people have been vaccinated with the second injection for 6 months, and the 'booster needle' vaccination can be completed on schedule. Lu Haiying, deputy director of the Institute of Immunization Planning of the Zhongshan Municipal Center for Disease Control and Prevention, said, "At present, Shenzhen Kangtai's new crown vaccine is sufficient, and Kangtai's 'enhanced needle' vaccination must be strengthened by homologous vaccines, and other manufacturers' vaccines cannot be selected." ”
In addition, from now on, Zhongshan City launched a "sequential" boost of immunization against covid-19 vaccines. What is "sequential" booster immunization? Is "sequential" immunization the "fourth shot"? Many members of the public expressed doubts about this. Lu Haiying said that the "sequential" enhancement of immunization is not the "fourth injection", which can be understood in layman's terms as saying that in the process of vaccination of "strengthening needle", the new crown virus inactivated vaccine of Sinopharm Zhongsheng Beijing Company, Beijing Kexing Company and Sinopharm Zhongsheng Wuhan Company has been vaccinated for 6 months, and the 18-year-old and older people who have not completed homologous enhanced immunization can choose the new crown vaccine of different manufacturers and technical routes for "mixed beating".
As of February 21, 2022, Zhongshan City has received nearly 12.34 million doses of COVID-19 vaccine, of which 5.059 million people have completed the full vaccination. This means that based on the data of the seventh census, the vaccination coverage rate of the whole population of the basic immunization of the new crown vaccine in Zhongshan Has exceeded 100%. At present, 2.212 million people in the city have completed the enhanced immunization (that is, "enhanced needle" vaccination), and it is expected that by the end of February, more than 2 million people in Zhongshan City will meet the conditions for enhanced immunization with the new crown vaccine. Lu Haiying called on many migrant workers to be vaccinated at the nearest COVID-19 vaccination site after arriving in Zhongshan after the Spring Festival.
How do citizens choose the "reinforcement needle"?
What is "sequential" immunity and "homologous" immunity? What is the difference between the two? The homologous booster immunization program refers to the use of vaccines that use the same technical route as basic immunization to administer immunization. That is, "what the original basic immunization hits, what strengthens immunization will be played." Sequential booster immunization program refers to intensive immunization using vaccines that are different from basic immunization. That is, "what the original basic immunization is played, the enhanced immunization will choose other vaccines" . Both homologous and sequential boosters are the same as basic immunization policies.
At present, sequential enhanced immunization is only suitable for people aged 18 and above who have completed the second dose of inactivated covid-19 vaccine of Sinopharm Zhongsheng Beijing Company, Beijing Kexing Company and Sinopharm Wuhan Company for 6 months and have not completed homologous enhanced immunization. There are a variety of options for strengthening programmes for this group of people. The first type continues to use sinopharm Zhongsheng Beijing Company, Beijing Kexing Company, Sinopharm Zhongsheng Wuhan Company inactivated vaccine (except for Kangtai and medical academy manufacturers); The second option is "booster injection" for Kangsino adenovirus vector vaccination; the third option is for Anhui Zhifeilong Koma recombinant protein vaccination "booster injection".
Lu Haiying reminded that citizens who have completed the "strengthening needle" in the past should not repeat the vaccination. Adolescents under the age of 18 are still unable to receive "booster needle" vaccinations. "Sequential immunization is very common in rabies vaccines and other vaccinations, and now some inactivated vaccines can be 'mixed' with adenovirus vector vaccines and recombinant protein vaccines, which can solve the discomfort problems such as allergies caused by some citizens receiving a certain new crown vaccine."
How do citizens choose the "reinforcement needle"? Specific vaccinations can be referred to the following table.
COVID-19 vaccination requirements.
Appeal to the elderly in Zhongshan to be vaccinated
For Zhongshan, improving the COVID-19 vaccine coverage rate for the elderly is a very important measure for the prevention and control of the new crown epidemic at present. Lu Haiying said that the elderly over 60 years old are at high risk of contracting the new crown virus. Although the general symptoms of infection with the Omiljung strain are not severe, due to its high transmissibility, the risk of potential infection in the elderly cannot be ignored; and most elderly people have underlying diseases, and once infected, the rate of severe illness and mortality will increase.
According to information released by the Hong Kong Hospital Authority, as of 00:00 a.m. on February 19, 2022, more than 60 patients have died in the current round of the epidemic in Hong Kong, most of the deaths are elderly people over 70 years old, and many have not been vaccinated against COVID-19. "Old age or basic disease should not become a 'contraindication' to the new crown vaccine for the elderly, as long as the underlying disease is stable and controllable, it should be advocated to call on the elderly to obtain protection through the new crown vaccine." Lu Haiying said.
According to statistics, as of February 21, 2022, the elderly aged 60 and above in Zhongshan City have received 587,000 doses of the new crown vaccine, and nearly 290,000 people have been vaccinated throughout the whole process, with good safety. At present, there are still about 90,000 elderly people who have not received the first dose of the new crown vaccine, Lu Haiying suggested that the citizens and friends mobilize their relatives and friends (especially the elderly) to carry out the new crown virus vaccination as soon as possible; people over 60 years old who meet the requirements of sequential enhanced immunization can also choose to strengthen immunization in a sequential manner.
Q: How safe and effective is sequentially enhanced immunization?
Lv Haiying: According to the national vaccine research and development special class, the two sequential enhanced immunization combination schemes can greatly improve the level of neutralizing antibodies in recipients, and at the same time have better safety.
Q: What are the contraindications to "booster injection" vaccination?
Lv Haiying: The contraindications to strengthening needles are basically the same as basic immunity, mainly including:
(1) Those who are allergic to the active ingredient of the new coronavirus vaccine, any kind of inactive ingredient, or the substance used in the production process, or those who have been allergic to the same vaccine before;
(2) Those who have had a severe allergic reaction to the vaccine in the past (such as acute allergic reaction, angioedema, dyspnea, etc.);
(3) People with uncontrolled epilepsy and other serious neurological diseases (such as transverse myelitis, Guillain-Barre syndrome, demyelinating disease, etc.);
(4) Patients who are feverish, or suffering from acute diseases, or acute onset of chronic diseases, or patients with uncontrolled severe chronic diseases;
(5) Pregnant women.
Q: At present, are there enough COVID-19 vaccines for various manufacturers? Where are the CanSino vaccination sites?
Lv Haiying: Kangtai's covid-19 vaccine supply is sufficient. The supply of other types of NEW CROWN vaccines is still relatively tight, and the public pays specific attention to the announcement of the new crown vaccine points and goes to the vaccination. In addition, all COVID-19 vaccination sites in Zhongshan are exempt from appointments, and the specific opening time and appointment method are subject to the release of each town street.
Cansino vaccination site.
Reporter Zeng Yanchun of Nanfang Daily
[Correspondent] Ou Huihui
【Author】 Zeng Yanchun
【Source】 Southern Press Media Group South + client