Do you really think that in the future they might want to replace all people with robots, even in ordinary life? It is clear that to do some work, the droids will be much better than man, but this is for production, and life remains a life and it is the prerogative of a living being.
That's what I said. It's not realistic. It's more likely that we'll find a a way to stall aging and life become a "pay for life years" scheme than for them to replace everyone with droids.
People doing bad things is probably a bigger threat to members of society than naturally occurring pathogens.
If everyone were fitted with a neural lace for monitoring, crime in it's various forms could be reduced to near zero. Anyone who was about to commit a crime, or even get themselves into trouble by doing something dangerous, could be stopped from harming others or saved from themselves.
Such a thing would have other benefits as well. Instant and intimate feelversations with anyone else in the hive, regardless of geo-location, would be trivial (and the amount you pay the corporation would probably be less than an SMS of a few years ago.) Also, no need to try to remember a bunch of passwords.
A neural lace would probably be much less invasive to the human body than manipulation of our immune systems which are highly complex. If corporations performed the safety studies (with science!) and government entities signed off on the studies, would you be comfortable having one grown within your brain and initiated? Would you be comfortable forcing others who have some 'crazy paranoia' thing going and don't trust the powers that be to avoid mis-using the framework to undergo the procedure?
People would probably find this disturbing. Not everyone would appreciate becoming a snowflake dissipating in an ocean. It could come sooner than we expect though. Neurologist already have ways of predicting what choices people would they before them become conscious of their decision (and also opens up the debate whether we actually have free will). The device they're using is currently bulky but with the rate technology progresses, we can't really tell. Same goes for TMS. They can actually temporarily turn you into a psychopath by stimulating/dampening certain areas of the brain.
Hopefully though we'd get nanobots before we reach neural networks. If we can simply have bots circulating in our body fighting off infections, we won't have any need for vaccines.