It will help curtail the spread of the disease, but I think it would be pretty heavy-handed not to allow anyone to travel etc. who doesn't feel comfortable injecting dangerous chemicals into their bloodstream.. coercing people into getting injections of any sort seems rather dystopian to me. (Not that it's not something we already do.) Also, I've heard that vaccine passports would be illegal for some reason. So, I think there are pluses and minuses and I'm not sure which side is best. Personally, I'd be one without such a passport..