Weekend Talk: New Crown Vaccines and Anti-Immunity (sterilizing immunity)

With the new crown vaccine, the health code should turn green and you can travel freely? People who have a new crown vaccine will not be infected by others and get a new crown.
people who have been vaccinated still infect others? Does that mean that the new crown vaccine is a "selfish" vaccine for people who only have it, regardless of others? If it is still contagious, the health code will still not turn green, travel also need to do nucleic acid or antibody testing, the benefits of the vaccine will be greatly reduced.
the concept involved here is the elimination of sterilizing immunity, which is different from effective immunity.
the new crown vaccine is often said in the media to have more than 70% or more clinical effects, said to be effective immunity.
, there is not much discussion in the media about eliminating sexual immunization.
, according to Pfizer, by mid-February, there will be enough long-term clinical data to answer that question.
commonly referred to as infection, not simple contact transmission.
, for example, a new crown patient with the virus touches the doorknob, and another touches the handle before shaking hands with someone else.
the virus, anyone is the vector, but it's not serious, and no vaccine can stop it.
serious is that after the virus enters the human body, the use of biomass mechanism in the body, the production of a large number of viruses, so that the infected human body becomes a large number of virus carriers and carriers.
the mechanism of the vaccine is to use the body's immune function to suppress the use of the virus in the body's biomass mechanism.
After the new corona vaccine, the body will produce a large number of antibodies, killing the new coronavirus invaded cells, so that the new coronavirus can not use the cell's biomass mechanism to prevent human infection, not only do not get sick, will not infect others.
but the resulting new coronary antibodies will survive in the body for a long time? If so, it is a vaccine that eliminates immunity.
can't, it's hard to say, because antibodies aren't the only mechanism by which the body's immune function kills viruses that invade cells.
, for example, after a new coronavirus, the body develops an immune response to the new coronavirus, which causes immune B cells to produce long-term memories.
even though the number of new coronavirus in the body decreases over time, once the new coronavirus invades again, B cells can quickly produce a large number of new coronary antibodies against enemies.
, for example, immune T cells, through the cellular immune mechanism, can also kill cells invaded by the new coronavirus.
memory of T-cells and can last for many years.
if the new crown vaccine is given, Immune B and T cells can achieve a long-term way to prevent the new coronavirus from magnifying in the body, which is still a vaccine against immunity.
, cellular immunity detection techniques are far less easy than antibodies.
, the success of the new crown vaccine is, after all, what has just happened, clinical trial follow-up observation is still ongoing, there is not enough clinical data to prove that the new crown vaccine has anti-immune effect.
good in the FDA emergency authorization to account for the use of the new crown vaccine has been a month.
because vaccinations are divided into two, three to four weeks, millions of people should be vaccinated from now on.
, of course, the number of people involved in vaccine clinical trials was much smaller, but the observations were much longer and much more detailed.
, perhaps in the near future, there will be a conclusion as to whether the new crown vaccine is a vaccine against sexual immunization.
from a practical point of view, this conclusion is important.
The idea is that if the new crown vaccine does not have anti-immune function, it may take only three months to get the vaccine twice a month (a clinical trial in the British journal Nature reported last September that found that three months after vaccination, the number of antibodies decreased below the detection line).
every trip since then, but also to do nucleic acid testing, how troublesome ah.
is perhaps even more noteworthy that the new coronavirus enters the body and is compounded with angiotensin-converting enzyme 2 (angiotensin-convertingase 2, ACE2), which affects the tissues and cells of the upper and lower respiratory tract.
the current new coronavirus vaccine is all about stopping the expansion and symptoms of the new coronavirus in the lower respiratory tract, according to a report on the U.S. website "verywell health" last month, there have been no reports of upper respiratory tract.
is true , serious new coronary symptoms mainly occur in the lungs of the lower respiratory tract , and the new coronary vaccine helps to avoid infections in the lower respiratory tract , which is certainly good for the vaccinators themselves .
the virus, which is found in the nasopharyngeal part of the upper respiratory tract, can still be amplified and a large number of viruses can be transmitted to others by breathing.
if that were the case, the new crown vaccine would be a self-serving "selfish" vaccine.
the birch