"Most vaccines against viruses work by prompting our bodies to produce antibodies that latch on to and neutralize the virus. Figuring out where on the virus to target antibodies is a critical issue in the development of a vaccine. A vaccine is like the scrap of clothing investigators use to put a bloodhound on to a fugitive's scent; by presenting specific viral fragments, a vaccine trains your body's immune system to recognize the virus "
"The vaccine is like showing a picture of the HIV so that it is able to recognise it if it sees it again in the future"
"A vaccine is like a disease but a like a half active/weak one, which doctors inject into to you. because its weak, the body can overpower it and you can be cured. what this does is prepares the body for when the real disease does come so it knows what to do and get rid of the disease faster and be more prepared for it. "
Most vaccines operate under this principle. They are a version of a virus that is crippled. Usually the DNA or RNA that is typically at the center of the viral particle has been removed. Without this genetic information the virus is just a shell of lipid and protein. But since the outer coating of the vaccine is identical to the virus, the immune system can be trained to detect the real one with the fake. It's like having identical twins; 1 is crippled and in a wheel chair. The cripple can't do much, but you can identify the healthy twin from crippled one.
" Parker said getting the vaccine is like putting snow tires on your vehicle - it's a preventative measure."
"Vaccine is a modified product from the infection organism (like a bacteria or a virus). Giving a vaccine is like deliberately introducing a mild, insignificant infection in the body to stimulate and prime the body defenses. So when there is a real infection, the defense system is ready and waiting to combat that infection successfully."
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