Thoughts on General and Partial Inoculations is a seminal medical treatise authored by Thomas Dimsdale, a prominent 18th-century English physician renowned for his pioneering work in the field of smallpox inoculation. This comprehensive volume not only presents Dimsdale’s own observations and reflections on the practice of inoculation but also includes translations of two significant treatises originally written during his time in St. Petersburg, Russia. These treatises were published by the express command of Empress Catherine the Great, who personally invited Dimsdale to Russia to inoculate the royal family and members of the court, marking a pivotal moment in the history of public health. The book delves into the comparative merits and risks of general versus partial inoculation, offering detailed accounts of the procedures, outcomes, and the broader implications for society. Dimsdale meticulously documents his experiences, the methods employed, and the results observed, providing valuable insights into the efficacy and safety of inoculation as a preventive measure against smallpox—a disease that was one of the most feared and deadly of the era. Through a blend of scientific rigor and practical advice, Dimsdale addresses common misconceptions and fears surrounding inoculation, advocating for its wider adoption as a means to curb the devastating impact of smallpox. The inclusion of the Russian treatises not only broadens the scope of the work but also highlights the international significance of inoculation and the cross-cultural exchange of medical knowledge during the Enlightenment. Thoughts on General and Partial Inoculations stands as a testament to the transformative power of medical innovation and the enduring quest to protect humanity from infectious diseases. It remains an important historical document, reflecting the challenges, debates, and triumphs of early immunization efforts, and offers a fascinating glimpse into the intersection of medicine, politics, and society in the 18th century.