Expert: The new coronavirus inactivated vaccine will be better immunized twice

Medicine Network December 23 - This afternoon, the State Council joint prevention and control mechanism on the winter and spring epidemic prevention and control and vaccination of key populations held a press conference.
the meeting, Wang Huaqing, chief expert of china's CDC's immunization program, said in response to a reporter's question that the inactivated vaccine should be shot twice, because two injections of immune effect will be better.
from the published new coronary vaccine literature, the main time to play a role is two weeks after the second dose of vaccination, will produce better immune results.
on the immune mechanism that works after vaccination, Wang Huaqing said that after vaccination, the body's immune system mainly has T lymphocytes and B lymphocytes in play.
this function has three main aspects: first, T lymphocytes and B lymphocytes after vaccination produced an identification effect;
once a pathogen invades the body, B lymphocytes are good, T lymphocytes are good, first identify and hit the vaccine is not the same.
do you say vaccines have a specific effect? Wang Huaqing explains that it specifically identifies invasive pathogens, whether viruses or bacteria.
the body produces antibodies, or after vaccination, T lymphocytes are lethal and have the effect of eliminating pathogens.
same time, after vaccination, immune memory is formed, which quickly produces antibodies when it encounters the same pathogen, eliminating the pathogen and thus preventing disease.
。