Gattaca. I’m curious tho where does it stop. For example, US stopped TB vax long time ago while half of EU continues. Those born in EU bear the scars on their arms from the vax. Sure TB isn’t as prevalent in the US as it used to be but there’s nothing stopping it from coming on a plane. Bacterial infections of the lungs are very hard to fight esp with the increase of antibiotic resistance. A single cough from a TB in…
Based on the UK, Israel and the US, 60% looks like it gets you pretty close to that.