Who was the author of the book, Plagues and Peoples?

Plagues and Peoples is a book on epidemiological history by William Hardy McNeill published in New York City in 1976. It was a critical and popular success, offering a radically new interpretation of the extraordinary impact of infectious disease on cultures as a means of enemy attack. The book ranges from examining the effects of smallpox in Mexico, the bubonic plague in China, to the typhoid epidemic in Europe.