I think you mean contergan [0]. Seems to be still in use. [0] https://en.wikipedia.org/wiki/Thalidomide https://en.wikipedia.org/wiki/Thalidomide The main dif

I think you mean contergan [0]. Seems to be still in use. [0] https://en.wikipedia.org/wiki/Thalidomide https://en.wikipedia.org/wiki/Thalidomide The main difference is that the way the mRNA vaccine works is much better understood. Maybe better understood,on a molecular level, than many other medications.