The Great Mortality

In the category Disease for the 2021 NONFICTION READER CHALLENGE, I read The Great Mortality: An intimate history of the Black Death, the most devastating plague of all time by John Kelly, 2006.

It was particularly interesting to read about a pandemic during the Covid-19 pandemic. The plague is now often referred to as the Black Death, but it was known to Europeans at that time as The Great Mortality, which Kelly calls “the greatest natural disaster in human history.” In the introduction, he mentions writing about a patient who had AIDS in the early 1990s [in a previous book], when there were no effective treatments, and writes, “A hallmark of a pandemic disease is its ability to destroy worlds, not just individuals, but it was one thing to know that, quite another to witness it.” And, he adds what was at that time “newly emerging illnesses such as Ebola fever, Marburg disease, Hantavirus pulmonary syndrome, SARS, and avian flu.” So, adding the Covid-19 virus brings this up to date.

He describes in excruciating detail how devastating the plague was – not only in its first outbreak, but also in subsequent outbreaks for the next three centuries. “The sheer scope of the medieval plague was extraordinary. In a handful of decades in the early and mid-fourteenth century, the plague bacillus, Yersina pestis, swallowed Eurasia the way a snake swallows a rabbit – whole, virtually in a single sitting. From China in the east to Greenland in the west, from Siberia in the north to India in the south, the plague blighted lives everywhere, including in the ancient societies of the Middle East: Syria, Egypt, Iran, and Iraq.”

Kelly’s research is from current historians and microbiologists, and from letters, chronicles, and reminiscences of contemporaries who experienced the plague. I found it particularly interesting that Kelly writes about the plague as if it were a living entity (“Then in August, after death had done all that death could do, Y. pestis bade farewell to the Balkans and moved northward into Hungary, Austria, and Germany.” And his use of verbs: “Crossing the Grand Pont to the Ile de la Cité, the pestilences visited the Hôtel-Dieu…,” “then travelled to … and like a good guest it left …”).

At first I found the structure of the chapters rather confusing; Kelly often moves back and forth in time within a chapter. But then I realized that each chapter focuses on a different country or area of Europe and Asia. In describing how the plague advanced through the area and the specific effects it had, Kelly includes background information to put it into perspective. He also makes comparisons between different places and, where the experience of the plague was different, he explains why. So in addition to information about the pandemic and the disease itself, there is a lot of historical input.

The final chapter is about what he calls the ‘Plague Deniers;’ not because there are scientists and historians who deny there was a plague, but that they believe the disease was not caused by the plague bacillus. He presents evidence that negates these views and states, “However, about one thing we can be certain. Microbiologist Didier Raoult is right; the Black Death was an outbreak of plague.” However, there still seem to be some puzzling aspects of the disease and its progression that Kelly also presents.

There is so much detail in this book – about the disease itself, how it spread, what effects it had, the innovations that resulted from it – that it is difficult to cover it all in a book review. But for anyone interested in the consequences of a pandemic, in the Black Death itself, in history, or in the impact of events on society, this book is highly recommended.



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