1/n Where's the vaccine already? A summary of the current state of research into a vaccine for the coronavirus (SARS-CoV-2) with a bunch of digressions thrown in. If you've been following the news, you probably know most of this. 2/n All vaccines rely on triggering the body's immune response to fight an infection. Historically, this has involved using a weakened virus. In fact, the word vaccine comes from the latin word vacca (cow) from the early use of the cowpox virus (vaccinia) against smallpox.

For the benefit of people who are finding it difficult to get a reasonable understanding of what's going on around the CAA and NRC without being overwhelmed, I've cobbled together a short summary based on publicly available information. #CAA #NRC 1/n The NRC initially came about in 1951.