Is the antibody obtained by infection better than vaccination?
Can I get COVID-19 vaccine after turning negative? How long can I get vaccinated?
Are cancer patients the priority population for vaccination?
Wang Huaqing, chief expert of immunization program of China CDC.
Authoritative answer
Is the antibody obtained by infection better than vaccination?
Can young people relax their protection against Omicron?
Although the pathogenicity of Omicron mutant is weaker than that of Covid-19, there is still a risk of severe illness and death when infected with Omicron mutant, and its risk can appear inAny age group, including adults, teenagers and children. Of course, the elderly and people with basic diseases have the highest risk ratio.
At present, many studies have shown that the risk of hospitalization, or the risk of severe illness and death of unvaccinated people, including adolescents and adults, is quite different from those who have completed the whole course or strengthened immunization with Covid-19 vaccine.
This risk can be reduced to some extent by vaccination. Not vaccinated against Covid-19, andThe risk of serious illness and death caused by pure natural infection.Significantly higher than those vaccinated.. Therefore, it is suggested that those who have not been vaccinated should complete the vaccination as soon as possible, and those who have not completed the enhanced vaccination should complete the enhanced vaccination as soon as possible, so as to reduce this risk to a relatively low level, whether it is the elderly, adults or young people.
Can I get COVID-19 vaccine after turning negative? How long can I get vaccinated?
Can a second dose of booster immunization be carried out?
If it is confirmed by nucleic acid test or antigen test that Covid-19 has been infected recently, it is not recommended to vaccinate the infected person with Covid-19 vaccine in the near future.
A number of studies have consistently shown that the immunity produced by Covid-19 infection is weaker than the mixed immunity produced by infection and vaccination. If Covid-19 vaccine is needed in the later period, according to the current regulations, the time between infection and vaccination should be more than 6 months. We will continue to evaluate the necessity of vaccination for infected people according to the virus variation, vaccine research progress and epidemic situation, and constantly improve the immunization strategy.
Are cancer patients the priority population for vaccination?
Can people who are undergoing cancer treatment be vaccinated?
What should I do if I encounter an inoculation point that is not supported?
Due to illness or chemotherapy, radiotherapy and other treatment measures, some cancer patients have moderate or severe immune dysfunction, which increases the risk of severe COVID-19’s disease and death. Therefore, cancer patients need to be vaccinated with Covid-19 vaccine.Belong to the priority vaccination population.
There are many types of clinical manifestations of cancer, and the treatment measures are also different.Whether a patient is in the onset stage or in the treatment stage can be vaccinated depends on the judgment of relevant professionals.. The immune response of cancer patients after vaccination with Covid-19 vaccine may not be as good as that of healthy people because of their low immune function. In the "Work Plan for Strengthening Vaccination in Covid-19 for the Elderly", it is specifically mentioned that all localities should "scientifically evaluate contraindications, and list the specific reasons for those who do have contraindications", which is also applicable to the current evaluation of contraindications for cancer patients.
COVID-19 vaccine is only valid for six months?
People who have already completed the whole course of immunization,
Is it still effective to carry out intensive immunization now?
Vaccination with Covid-19 vaccine has protective effects on immunity, including antibody, cellular immunity and immune memory. Current research shows that with the passage of time, there has been a decline in antibodies, on the other hand, virus mutation has also appeared immune escape. However, cellular immunity lasts longer.
Studies have shown that vaccination with booster needles can arouse immune memory cells, effectively raise antibody levels, improve vaccine protection, and further consolidate the effect of preventing Covid-19 infection-related hospitalization and death.
If the booster immunization is not completed, as long as it meets the vaccination conditions, it should be completed as soon as possible in accordance with the provisions of the immunization program. Of course, we should also systematically evaluate the effect of strengthening immunization and constantly improve the immunization strategy. In the future, whether it is vaccine research and development or improving existing vaccines, we should start from two aspects: first, we should consolidate and realize lasting and extensive protective immunity; Second, we should make further efforts in blocking infection and preventing transmission.
Source: National Health and Wellness Committee official website, Healthy China.
Editor: Wang Ning Yang Shijia (Internship)