Barbarian
Member
It stimulates the immune system. Different vaccines work in different ways, but they all do that.At & from the beginning that's all I've been asking, why does the vaccine work?
Both the Pfizer-BioNTech and the Moderna COVID-19 vaccines use genetically engineered messenger RNA (mRNA). Coronaviruses have a spikelike structure on their surface called an S protein. COVID-19 mRNA vaccines give your cells instructions for how to make a harmless piece of an S protein. After vaccination, your muscle cells begin making the S protein pieces and displaying them on cell surfaces. The immune system recognizes the protein and begins building an immune response and making antibodies. After delivering instructions, the mRNA is immediately broken down. It never enters the nucleus of your cells, where your DNA is kept.
The Janssen/Johnson & Johnson COVID-19 vaccine is a vector vaccine. In this type of vaccine, genetic material from the COVID-19 virus is placed in a different kind of weakened live virus, such as an adenovirus. When the weakened virus (viral vector) gets into your cells, it delivers genetic material from the COVID-19 virus that gives your cells instructions to make copies of the S protein. Once your cells display the S proteins on their surfaces, your immune system responds by creating antibodies and defensive white blood cells. If you become infected with the virus that causes COVID-19, the antibodies will fight the virus.
Viral vector COVID-19 vaccines can't cause you to become infected with the COVID-19 virus or the viral vector virus. Also, the genetic material that's delivered doesn't become part of your DNA.
The Novavax COVID-19, adjuvanted vaccine is a protein subunit vaccine. These vaccines include only the parts (proteins) of a virus that best stimulate your immune system. The Novavax COVID-19 vaccine contains harmless S proteins. It also has an ingredient called an adjuvant that helps with your immune system response. Once your immune system recognizes the S proteins, this vaccine creates antibodies and defensive white blood cells. If you later become infected with the COVID-19 virus, the antibodies will fight the virus.
Get the facts about COVID-19 vaccines
Find out about the COVID-19 vaccines, the benefits of COVID-19 vaccination and the possible side effects.
www.mayoclinic.org
That's why we see that vaccinated people are less likely to be infected with the virus, and are much less likely to be seriously ill or die from the virus.
How can we have so much confidence in it?
Millions of people have been vaccinated and vaccinated people are less likely to be infected and much less likely to become seriously ill or to die from the virus.
Sept. 10 (UPI) -- People fully vaccinated against COVID-19 are more than 10 times less likely to be hospitalized following infection and more than 10 times less likely to die as a result compared to those who are unvaccinated
CDC: Fully vaccinated 10 times less likely to be hospitalized, die from COVID-19 Delta variant - UPI.com
People fully vaccinated against COVID-19 are 10 times less likely to be hospitalized following infection and 10 times less likely to die as a result compared to those who are unvaccinated, according to a CDC report.
www.upi.com
One odd result is this:
People Vaccinated Against COVID Less Likely to Die from Any Cause: Study
People Vaccinated Against COVID Less Likely to Die from Any Cause: Study
People who have been vaccinated against COVID-19 are not only less likely to die from the virus, but they’re also less likely to die from any cause in the months following vaccination, according to a new study.
www.webmd.com
This is an illustration of a point that Free made; "correlation is not causation." COVID-19 vaccination doesn't protect you from car crashes, risky sex, and many other hazards. I suspect the correlation is because people who rationally avoided risky behavior with regard to COVID-19, tend to also avoid risky behavior generally. This suggests that some of the great difference in survival rates might be due to things like healthy lifestyles, masking, social distancing, and the like.