So a zombie outbreak finally happened, but it's not like it is in the movies. Instead of craving the taste of human brains, those infected with zombiism simply want to shamble along, occasionally groaning, and on rare occasions forming herds. There is some indication that zombies enjoy the same things they enjoyed when they were 'alive', but this has not been proven, and for the most part zombies seem to have lost most or all of their former personality and memories.
Getting bitten or scratched by a zombie still has a very good chance of passing the infection to you (as long as actual blood is drawn), and as can be expected there is no cure. When not being spread through blood contact, the zombie virus seems to infect the recently deceased and those with severely deficient or depleted immune systems.
Zombies live about as long as a dog, ten to twenty years depending on the health of the host, but during this time they still need food, water, and oxygen (albeit a smaller supply than a regular human would need). They appear to be completely resilient to disease, and injuries barely phase them. They show some emotions, and seem to have basic intelligence, but things like stairs are a large mental effort for them, and they do not seem to be able to form new memories.
What I'm wondering, though, is if, say, 15% of the population caught the initial strain, and now are zombies, how would the rest of society react? What adjustments would be made to laws and daily operations in order to account for zombies? What might be done to contain these shambling hordes? Are there any real-world examples to extrapolate from? I'd appreciate both/either the short-term and long-term implications.
Let me know if I left anything important out.