active 19th century A. Mitra

Little is firmly documented online about A. Mitra beyond his medical writing, but Project Gutenberg identifies him as a 19th-century author of The Bubonic Plague. The book is a detailed medical study of plague history, symptoms, causes, treatment, and public health measures, written in clear, instructive prose for readers concerned with epidemic disease.

A contemporary sketch of Dr. A. Mitra's life points to Ashutosh Mitra, a physician educated at Calcutta University who later became Chief Medical Officer of Kashmir. That account says he also wrote a booklet on plague and played a major role in sanitation, epidemic response, and public health reform, especially during cholera outbreaks and the plague emergency of the early 1900s.

Because surviving biographical information is sparse and not all sources line up neatly, some details about the author remain uncertain. What does come through clearly is the profile of a doctor-administrator deeply engaged with the medical crises of his era, writing not just as an observer but as someone directly involved in fighting infectious disease.