Great Death — a series by Vincent Berg

A random meteor shower turns into an apocalyptic event, as the world's electrical, communications and infrastructure fail. This series examines what happens to a random group of individuals, as they not only deal with the sickening and deaths of billions, but with the fallout in terms of how people cope with such responses. Only the third book of the series is being published to Finestories (since the other books deal with several 'adult' issues), but it should stand alone without having read the other books.