The Ferocity of the Plague According to Buonaiuti

How does Buonaiuti describe the plague and its ferocity? What details does he report to support that description? While Buonaiuti may not directly assert an explanation for the causes of the plague, what are some indirect indicators for what those experiencing the plague thought were its causes? What are the effects of the plague on family? On religion? On the economy? On the population? Describe the European economic situation in the latter part of the fifteenth century.