I'm all for a vaccine that is adopted world-wide although i'd be reluctant to become an early adopter without good medical advice. There is huge pressure to be the company first with a vaccine so the speed at which it's going through it's trials makes feel like i'd rather wait until others have had it. Having said that, you only have to be one of those who ends up spending a month on a ventilator then comes out of that with a life time of lung damage to realise that the vaccine might have been worth trying sooner than later.