Talk:Vaccine/@comment-90.144.212.165-20141025190847/@comment-10540150-20141026002215

Exactly. This is the main reason why I don't place much stock in the missions as story telling components. I have an in-head explanation that the virus mutated too quickly and the vaccine didn't work as a result, but as far as I'm aware there's no canonical explanation. And even if the virus mutated, it takes all of about an hour to isolate the changes and update the vaccine anyway. Although, if we were going to be logical, this shouldn't even be a mission. They should have an automated data retrieval system that would allow them to pull the blueprints of the vaccine all the way from Aartis and create it in pretty much any decently equipped medical facility.