An older couple who are friends of ours got themselves vaccinated , and a week later they are both in the hospital fighting for their lives. So was it the e vaccine that made them I'll, or did they somehow both catch the virus at the same time? What do you all think? Seems awfully coincidental to me.
Yes, COVID-19 vaccines are safe, effective and free. The mRNA is destroyed within days. The immune response is the same as to any other antigen. Natural immunity is not as effective as that induced by the vaccines.
The concept of mRNA vaccines has been scientifically relevant since the early 21st century, however, the development of the Pfizer/BioNTech and Moderna COVID-19 vaccines presents the initial, large scale, application of this type of inoculation [16]. Previous platforms have utilized similar mechanisms of vaccination by exposing a subject to a pathogen, or a specific aspect of a pathogen, such as a sugar or capsid. However, mRNA vaccines provide a novel and alternative approach to providing pathogen immunity [17]. Messenger RNA vaccines provide the genetic code of the pathogen’s relevant antigen. This messenger RNA is then translated by the host to form the relevant protein from the pathogen being studied. In other words, the vaccine provides the cells with a blueprint to construct the protein [18]. This process allows the host to mount an immune response against the constructed foreign protein [18]. The cells then destroy the blueprint, the injected mRNA, following the development of the protein [18]. The half-life of the mRNA is short and remains in human tissues for just a few days [19].
