WHY DON’T WE ALREADY HAVE A CORONAVIRUS VACCINE?

Starting in 2003, after outbreaks of coronaviruses SARS and MERS, scientists began the race to create a coronavirus vaccine, so why don’t we already have one? Top immunologist and microbiologist, Prof. Dolores Cahill, Phd, sheds light on why vaccine makers are struggling to produce a safe & effective product.

 

https://www.youtube.com/watch?v=RJWeZyzOaOQ