Distressing to read during the pandemic; to compare what went wrong in that scenario ( the core of society did not hold) and think about what can still go wrong today.
I don't know if there was an artistic advantage to that bouncing back and forth in time, if found that confusing. Nevertheless the story line and the characters are engrossing and I could not put the book down.
Society collapsed because that virus moved so fast. Will the new COVID mutations strike humanity at a speed which we can no longer cope with?