General Discussion
In reply to the discussion: Vaccination question not asked by the MSM [View all]andym
(6,074 posts)Last edited Tue Mar 30, 2021, 02:08 PM - Edit history (1)
before reaching full efficacy.
They do not weaken the immune system, but actually activate it, putting it on alert. The idea is that vaccines activate the immune system and the immune systemthen can more easily attack even other infections from that point onwards. How does it work? The immune system increases the number of B and T lymphocytes available to fight infections in general, as well as launching a specific response against the vaccinated antigen. That's why getting even unrelated vaccines may be helpful in a limited way to ward off infections with other agents.
In the case of the Covid vaccine, even though significant adaptive immunity is not achieved until about 3 weeks, in the meantime the immune system is on heightened alert and the available antibodies though low in titer can only be helpful.