I also read In The Wake Of The Plague
. It gives a fairly easy read overview of the effects of the plague.
There's also Germs, Guns, and Steel
. It delves into disease but also technology that changed the times. I read the first review that there on Amazon - the white supremacy thing - that's a load of crap. Don't let it affect your interest.
I also saw a show on The Discovery Channel (I think) about a village in England that was completely wiped out by the plague, save a few. Whole families were wiped out, except maybe the mother or the father. They buried their spouses, all their children, and waited a until a year passed - nearby villages assumed eveyone was dead by then, and diddn't want to venture in any sooner fearing infection. A handful of people were surprisingly still there, everyone else having been buried for several months. The people that live there now are descendants of the village survivors and carry a gene that makes them immune to the plague. Some portion of the population will be immune to a given virus. This occurs with everything from the chicken pox to AIDS.
It's interesting to consider that, as time goes on, we may have only two groups of people. Those with natural immunities to viruses that wipe out populations and those who can afford the immunizations and treatments....and no one else. Maybe far fetched, but after watching that program it seems a bit more plausible.