The scientific leap behind two new kinds of vaccines.
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Researchers working on Covid-19 vaccines have smashed speed records, bringing new vaccines from development to distribution in less than a year. They did this with the help of billions of dollars of unprecedented global investment — but also, in some cases, with a new type of vaccine technology.
There are four traditional types of vaccines, and they all require the growing and handling of live pathogens in a lab, a time-consuming process than can add months or years to development. But two new types of vaccines skip that step altogether by moving that work from the lab to our bodies. mRNA vaccines, like the ones from Pfizer-BioNTech and Moderna; and Adenovirus vaccines, like those from Johnson & Johnson and AstraZeneca; do this by sending genetic instructions directly into our cells, which then produce the protein the body needs to learn to fight Covid-19.
The result has been a host of vaccines developed faster than ever. But it’s also ushered us into a new age of vaccine technology, one in which we can send our own bodies the instructions on how to protect themselves. That technology is already being used to drive research on vaccines for HIV and cancer. These new types of vaccines are weapons we developed to fight the coronavirus – but their real impact is just beginning.
Our original article on Vox.com by Umair Irfan: https://www.vox.com/2020/8/13/21359025/coronavirus-vaccine-covid-19-moderna-oxford-mrna-adenovirus
A breakdown of the types of vaccines: https://www.vaccines.gov/basics/types
Infographic on the differences between mRNA vaccines and traditional vaccines: https://www.breakthroughs.com/advancing-medical-research/what-makes-rna-vaccine-different-conventional-vaccine
The New York Times has a really wonderful in-depth breakdown of how each of the vaccines work: https://www.nytimes.com/interactive/2021/health/how-covid-19-vaccines-work.html
Vox.com is a news website that helps you cut through the noise and understand what’s really driving the events in the headlines. Check out http://www.vox.com.
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