Ole Benedictow – Introduction & new publication

Dear all,

My monograph The Black Death and Later Plague Epidemics in the Scandinavian Countries: Perspectives and Controversies, Berlin: De Greuter, pp. 736, has just appeared: it is published in hardcover edition and also on the Internet in the form of Open access, De Greuter Open, https://www.degruyter.com/viewbooktoc/product/212904 . The book provides much new work on the Black Death, but also translations of works that so far has not been available in English. It also contains several long chapters that relate thoroughly to questions and controversies with respect to the presence of black rats in the Nordic countries (pp. 395-451 with three maps), transmission and dissemination by human ectoparasites, and the early-phase transmission theory or hypothesis rather (as long its advocates cannot explain how pathogenic doses of plague bacteria in the foregut of fleas are moved into a new bite site against the strong stream of a new blood meal).

This involves also the gathering together and presentation of all data on plague bacteraemia in rats and human beings to clarify their potential roles as sources of infection of feeding fleas and lice, the prevalence of bacteremia in rats and human beings measured as number of plague bacteria per mL (mm3) of blood, the volume of blood fleas or lice ingest (µL), and, thus, the potential role of human ectoparasites and rat fleas in the transmission and dissemination of plague bacteria. Finally, there is discussion of border values of Lethal Doses of transmission in the case of human beings and the presence and conditions for transmission of LDs of plague bacteria. There are also studies of the pattern, rhythm and seasonality of the spread of plague epidemics as reflections of and, thus, sources of information on the processes of transmission and dissemination.

The introductory general chapter on plague contains also two specific subchapters that really are lengthy articles. In Chapter 1.5, all paleobiological data on finds of aDNA or F1 antigen of Y. pestis in putative plague graves are gathered together with a comprehensive presentation of the research history and achievements of the new discipline of paleobiology in plague-related research, pp. 73-99. Chapter 1.4, reverts to the topic of alternative theories of plague, in this case an epidemiological alternative, which so far has not been addressed seriously and critically: ‘Serious Plague History under Pressure: The Twelfth Theory of Historical Plague. Comments on the Recent paper “Climate-driven Introductions of the Black Death and Successive Plague Reintroductions into Europe”, pp. 35-72. The relevant points on the role of human ectoparasites in the epidemiology of plague are discussed in the chapters mentioned above.

I will be grateful for all critical and supplementary reactions, which can come to good use now that my English publisher has asked me to write a 2nd edn. of my monograph on the Black Death and I am working on it to the hilt. This is also the case with respect to my previous monograph What Disease was Plague? On the Controversy over the Microbiological Identity of Plague Epidemics of the Past, Leiden: Brill , pp. 746.

Happy New Year to all,

Ole J. Benedictow
Emeritus Professor,
Department of History,
University of Oslo


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