A 44-year-old woman was exposed to the Nagasaki atomic bomb dropped and exploded by the U.S. military on August 9, 1945, and was injured in the head by a tree branch. On the same day, August 9, she was transported to the Omura Naval Hospital, located approximately 17 km northeast of Nagasaki City, where she was admitted.

    A 44-year-old woman in Nagasaki City was exposed to the Nagasaki atomic bomb dropped and exploded by the U.S. military on August 9, 1945, and was injured in the head by a tree branch. On the same day, August 9, she was transported to the Omura Naval Hospital, about 17 km northeast of Nagasaki City, where she was admitted. She had Y-shaped contusion wounds over her head and face. The wound was stained and moderately hemorrhaged. Her medical record only mentions that she was treated with Livanol gauze, a bactericidal disinfectant.

  Bayer, a German pharmaceutical manufacturer, commercialized Acrinol, a topical antiseptic, and began marketing it under the trade name Livanol in 1921. Acrinol was a yellow dye that exhibited bactericidal disinfectant action against some common bacterial species, such as streptococcus, staphylococcus aureus, and other pyogenic bacteria. It was used to disinfect mucous membranes and localized areas of suppuration. Sales were discontinued after 2018 because leukocytes and macrophages, which have a protective function against infection, are impaired by Acrinol.

　The Omura Naval Hospital was located in Omura City, Nagasaki Prefecture, approximately 19 km northeast of Nagasaki City in a straight line across Omura Bay. The Omura Naval Hospital was originally a hospital for military personnel. There were many patients with burns, but there was also a shortage of medicine. The only treatment was to dilute a cresol solution, soak it in gauze, and apply it to the skin in place of rivanol gauze for replacement. At the Omura Naval Hospital, patients were brought in one after another from about nine hours after the Nagasaki atomic bomb was dropped. On the first day alone, August 9, 758 people were transported, many of them seriously ill; by dawn on August 10, more than 100 of the inmates had died. 300 more were admitted on August 10, bringing the final total to 1,700.

    The Omura Naval Hospital received a telephone call from the police at around 3:00 p.m. on August 9 informing them that a large number of casualties had occurred in Nagasaki City and that the city was under fire. A rescue team headed by Lieutenant Jinnai, a military doctor, and consisting of medics and nurses from the Japanese Red Cross, was dispatched. Around 5:00 p.m., Mayor Yamaguchi of Omura City called to inform us that the number of casualties in Nagasaki was countless, and that they were being taken to hospitals along the railroad. The injured were transported from Urakami to Omura Station by a separate train, and from Omura Station all fire engines were mobilized to transport the injured to the hospitals. The injured arrived from Nagasaki at 8:00 p.m. Military transport vehicles and trucks arrived at the Omura Naval Hospital packed with folded and stacked severely injured A-bomb survivors.