Some of the technology behind coronavirus vaccine development dates back to the first vaccines; other techniques are much newer. Here are eight top strategies scientists are pursuing.
Although many scientists are impressed with the potential of RNA vaccines, such vaccines were relatively new when COVID-19 appeared on the scene. They haven't been around long enough to complete the testing that the U.S. Food and Drug Administration would require to license them for use in humans.Creating a DNA vaccine is another new approach to vaccine-making. The vaccine introduces directly into someone's body the genetic instructions for making the protein of interest.
This is a well-explored approach, used to make pertussis, diphtheria and tetanus vaccines.. It packages its proteins in a nanoparticle and injects them along with an adjuvant, which is a substance designed to enhance the response that the immune system makes to a protein.
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