How to monitor adverse vaccine reactions? China's disease control experts answer questions and demystify

, Beijing, China, January 3 (Reporter Du Yan) Beijing, Shandong and other places from January 1, 2021 to start the key population of the new crown vaccination work. How does China monitor adverse vaccine reactions? Will virus mutations affect vaccine effectiveness? Who is not suitable for the new crown vaccine? Experts from the disease control department answered questions at a press conference on January 3rd.
are these adverse reactions reported? Who's investigating? Who diagnoses it?
Wang Huaqing, chief expert of the immunization program of the Chinese Center for Disease Control and Prevention, said at a press conference held on January 3rd that China had enacted relevant laws and regulations, established a team of cdcs, and set up an electronic information system for adverse reactions to achieve data sharing in order to do a good job of monitoring adverse vaccination reactions.
, who will report any adverse reactions during the vaccination process? Who's going to investigate? Who's going to diagnose it? Who's going to identify it?
Wang Huaqing said that China's relevant laws and regulations clearly define the responsible reporting units, responsible reporters, the contents of the report, the reporting time limit and so on.
he said that the time limit for reporting adverse reactions was particularly significant, to be reported within two hours, and that the general situation should be reported within 48 hours.
determine if it's an adverse reaction caused by a vaccine? Wang Huaqing said that the diagnosis needs to be located in the provincial, municipal and county disease control agencies at all levels of the investigation and diagnosis expert group to complete. If identification is required, it is done by the provincial and municipal medical associations.
said that the monitoring of suspected adverse vaccine reactions is achieved through the monitoring information system established by the China Center for Disease Control and Prevention, and information sharing is achieved by the CDC and drug adverse reaction monitoring agencies. Disease control agencies and drug adverse reaction monitoring agencies at all levels also regularly analyze and evaluate the monitored information. In the event of a major incident, timely analysis and evaluation will be carried out.
the virus mutation affect the effectiveness of the vaccine?
the new coronavirus variant, is vaccination still useful? Wang Huaqing said at the press conference that during the proliferation process, the virus will mutate, but most mutations rarely affect the pathogenicity of the virus, testing reagent sensitivity and vaccine effectiveness.
he said that according to the latest information released by the World Health Organization, global monitoring of the new coronavirus mutation, there is no evidence that the virus mutation will invalidate the existing new coronavirus vaccine.
Wang Huaqing noted that the World Health Organization's continued focus on virus mutations and its possible impact will provide early warning and scientific analysis for the development and application of follow-up vaccines.
He stressed that the role of vaccination is not 100 percent, in the population immune barrier is not established or group immunization is not formed, even if vaccinated, but also to take non-medical personal protective measures, including wearing masks, frequent hand washing, ventilation, social distance and so on. Especially in the event of an outbreak, the above measures need to be strengthened in order to ensure that the outbreak does not rebound, non-proliferation.
people are not suitable for vaccination?
The people who are not suitable for vaccination include pregnant women, lactating women, those who are in the acute stage of fever, infection and other diseases, people suffering from immunodeficiency or immune disorders, as well as serious liver and kidney diseases, uncontrollable high blood pressure, diabetes complications, malignant tumor patients and others, said Pang Xingfire, deputy director of the Beijing Municipal Center for Disease Control and Prevention. Those who are not in the 18- to 59-year-old vaccination age group are required to wait for further clinical trial data to be disclosed to determine whether follow-up vaccinations are available.
stressed that before getting the new crown vaccine, we should pay attention to the taboo knowledge released by the CDC to understand the physical condition of individuals. Wear a mask when inoculated. After vaccination should stay for 30 minutes, no symptoms of discomfort before leaving the vaccination point, if there is a persistent fever and other phenomena, should be promptly treated and reported to the vaccination unit.