How safe is China's new crown vaccine? How do I get vaccinated?

, the global outbreak of new crown pneumonia has accelerated, with an average of more than 600,000 new confirmed cases per day, and new locally distributed cases or cluster outbreaks have been reported in many parts of the country. On the winter and spring epidemic prevention and control and vaccination of key population groups and other issues of general concern to the community, China's CDC chief epidemiologist Wu Zunyou, chief expert of immunization program Wang Huaqing,
joint prevention and control mechanism research team vaccine research and development team leader, the National Health And Wellness Commission Medical and Health Science and Technology Development Research Center Director Zheng Zhongwei responded., "external defense input, internal defense rebound" is the top priority of epidemic prevention and control. Will the new crown pneumonia outbreak make a comeback this winter and next spring? In this regard, Wu Zunyou pointed out that in the past year of prevention and control practice, China has accumulated a set of timely detection, timely control of the epidemic effective methods, and on this basis to further improve the prevention and control strategy. Measures deployed by the state to prevent the outbreak from rebounding this winter and next spring have been put in place, and
has sent a steering group to supervise and inspect the prevention and control measures of provinces, autonomous regions and municipalities directly under the Central Government. These measures will ensure that a return to the epidemic this winter and next spring is minimized.
Wu Zunyou introduced that the source of the virus in China with several sporadic cases has been basically cleared, one is the associated cases caused by overseas infected persons, and the other is the pollution of foreign goods caused by the transmission of human beings., China has identified a "two-step" new crown vaccination strategy. The safety and effectiveness of the new crown vaccine has been the subject of public concern. "Both are two of the most critical quality indicators for evaluating vaccines." Generally speaking, the safety of the vaccine refers to whether adverse reactions or serious adverse reactions occur in the subject after vaccination, Zheng said. Vaccines are generally considered safe if serious adverse reactions do not occur.
, according to Zheng Zhongwei, in the process of vaccine research and development, animal trials, Phase I. clinical trials, Phase II. clinical trials, Phase III clinical trials. In the course of the trial, it is desirable to evaluate whether the vaccine will produce adverse reactions in animals and humans, as well as the extent of adverse reactions, before the conclusion can be drawn on whether the vaccine is safe.
Zheng Zhongwei pointed out that China has carried out nearly one million emergency vaccinations in accordance with the law under the premise of voluntary and informed consent. The results show that China's new crown vaccine is very safe, there are some minor adverse reactions, but no serious adverse reactions. At the same time, in the process of emergency use, more than 60,000 vaccinators have been to high-risk areas abroad, so far no serious infection cases have been reported, which also proves from another angle that the vaccine has some protective effect.
as of December 2, 15 vaccines in China have entered clinical trials, of which 5 vaccines have entered Phase III clinical trials. Zheng Zhongwei said that in the world, into phase III. clinical trials of vaccines, China is the largest, the new crown vaccine research and development in the world's first square. He stressed that because China's new coronary pneumonia epidemic control is very good, in the country does not have the conditions to carry out Phase III. clinical trials, so China's vaccine research and development units in the completion of Phase I, Phase II. clinical trials, are taking international cooperation, with foreign countries or regions to jointly carry out Phase III. At present, the five countries and regions that have entered Phase III. Clinical Trial Vaccine Research and Development Unit are not the countries and regions with the highest outbreaks in the world. Therefore, the number of infections required to obtain Phase III clinical trials is not the fastest.
Zheng Zhongwei pointed out that vaccine research and development must respect the laws of science. Recently, relatively fast research and development enterprises have obtained the number of cases required for mid-term analysis of Phase III clinical trials, and are rolling to the State Drug Administration to submit relevant information to promote the registration and listing of China's new crown vaccine.number of people need to get a new crown vaccine to build an immune barrier? In this regard, Wang Huaqing replied that the spread of different infectious diseases coefficient is not the same. In the past, there were epidemics of infectious diseases such as low-flower, polio, diphtheria and measles, and the thresholds for established immune barriers were different because they were not infectious and had different transmission coefficients. Among the infectious, measles and whooping cough are strong, if we want to block its epidemic, the population's immunity to reach 90% to 95%.
on blocking the new coronavirus, Wang Huaqing pointed out that according to previous studies, the population immunity threshold is about 70%, or slightly lower than this. As the first step is implemented, immunization for priority populations will be extended to other populations. This immune barrier is built up when the vaccination rate in the population is very high.
, even if some people are vaccinated, people's awareness of prevention and control and prevention measures cannot be relaxed until the population immune barrier is established. Wang Huaqing stressed that masks should continue to be worn after vaccination, especially in crowded places such as public transport, and other protective measures such as hand hygiene, ventilation and social distance should also be maintained.are there any considerations for getting a new crown vaccine? Wang Huaqing said that inoculated people need to make an appointment and understand the vaccination process in advance. Before vaccination, the subject carries an identity document or vaccination certificate and fills in his or her health status objectively and truthfully.
According to Wang Huaqing, clinical results show that the new crown vaccine and any other inactivated vaccine similar, the general response is mainly reflected in the vaccination site local redness, pain, etc. , a few people due to individual differences may appear fever, fatigue, nausea, headache, muscle aches and so on, generally do not need to deal with self-recovery. Severe abnormal reaction usually refers to life-threatening or disability, disability, disability and other conditions after vaccination, requiring on-site first aid and hospitalization and other measures. According to the data of clinical trial results of China's new coronary inactivated vaccine currently available, no such serious abnormal reactions have occurred.
can the new crown vaccine and hpV vaccine be vaccinated at the same time? Wang Huaqing replied that, in general, before no national guidelines and programs are published, it is recommended that the new crown vaccine and HPV vaccine should be vaccinated separately, not at the same time. Wang Huaqing also pointed out that the general principle is that pregnant women are not recommended to be vaccinated, because most of the vaccine research data are less, so not recommended for pregnant women to be vaccinated.