What is mRNA vaccines – Covid-19
What is mRNA vaccines – Covid-19: Moderna announces results of human-to-human mRNA vaccines with the US National Institutes of Health.
Modena and Pfizer’s vaccines use the same technology depending on the messenger RNA or mRNA. Such vaccines use messenger RNA molecules that tell what proteins do to body cells. mRNA, in this case, contains the code that tells cells to reproduce the spike protein coronavirus SARS-CoV-2, which produces Covid-19.
It is the spike protein that initiates the infection process; Allows the virus to enter the cells, after which it continues to multiply. The mRNA-based coronavirus vaccine, once implanted in the body, teaches body cells to make copies of the spike protein. Later, it is thought to stimulate the development of antibodies against immune cells. These antibodies are present in the bloodstream and the real virus fights the human body and whenever it is infected.
Vector Component
Some vaccines have a repeating vector component. The Oxford vaccine is an example. The vaccine uses a different virus, a weaker version of the common cold virus (adenovirus) that infects the cod – just a code to treat the spike protein like a Trojan horse. Adenovirus is genetically modified, so that it is reflected in humans, enters the cell, and releases code that makes only spike proteins. The immune system recognizes spike protein as a potential external threat and begins to build antibodies against it. There is a DNA vaccine that uses the DNA molecules embedded in the genes and, in turn, encodes the antigen that makes up the immune system.
Messenger RNA (mRNA) is a self-binding RNA molecule that is closely related to the genetic sequence and is read by the ribosome during protein synthesis. Recording means that RNA is made with DNA. At the time of writing, the RNA polymerase makes the necessary copy of the gene from DNA to mRNA. mRNA is produced during the transcription process, in which the enzyme (RNA polymerase) converts a gene into primary mRNA (also known as pre-mRNA).
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