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director of the Institute of Infectious Diseases in Japan, arrived in Hong Kong with two assistants, Drs. Aoyama and Ishiyumi on June 12th. They were taken around the next day. On June 14th, Lowson wrote 'Kitasato discovered bacillus.' The following is quoted from a report in the Hong Kong Weekly Press dated July 15th on an address given by Kitasato: 'In the first day he was able to discover the bacillus in the bubo, lungs, liver and spleen of dead patients and he immediately made a culture in agar agar. On the same day he took with all due precaution some blood from the finger tips of patients suffering from the disease in a severe form and again found the bacillus. He then inoculated mice, guinea pigs and rabbits with the virus and in every instance the animals so inoculated displayed the symptoms of the disease and died.' Kitasato worked in a matshed within the Kennedy Town Hospital compound and made his discovery there. Following the discovery a telegram was sent immediately to the medical journal, the Lancet; later a full-length report was dispatched on July 10th. Both Aoyama and Ishiyumi contracted the disease, the former from nicking his finger while doing an autopsy. He survived to write a paper entitled “On the Plague Epidemic in Hong Kong in the years 1894 to 1895”.
The bacillus was also discovered by the French bacteriologist, Dr. Alexandre Yersin of Saigon's Pasteur Institute, who arrived in Hong Kong on June 15th. A few days later, he too found the bacillus. Lowson wrote on June 23rd: 'Got microscopes again out. Yersin got his bacillus.' Lowson later added that Yersin refused to work in the same matshed with Kitasato and it took a few days to erect another for him. Yersin reported and sent material back to the Pasteur Institute in Paris. After close scrutiny of the findings of both Kitasato and Yersin in their published papers by independent observers, doubt was cast on Kitasato's bacillus. The difference in the characteristics between his and Yersin's bacillus is highly technical and need not concern us. In the end, Yersin's was regarded as the real discovery, and the generic name given to the plague and allied organisms is subsequently Yersinia in his honour. To complete the story, although both of them knew that dead rats found in infected areas died of plague, they were unaware of the part played by fleas, which was discovered later by the Indian Plague Investigation Committee and others in the Indian Epidemic, about 1906-1908.
This then is an account of the situation as it developed in the first few months of the Epidemic as related in Lowson's diary. In several entries
137
director of the Institute of Infectious Diseases in Japan, arrived in Hong Kong with two assistants, Drs. Aoyama and Ishiyumi on June 12th They were taken around the next day. On June 14th, Lowson wrote 'Kitasato discovered bacillus.' The following is quoted from a report in the Hong Kong Weekly Press dated July 15th on an address given by Kitasato:'In the first day he was able to discover the bacillus in the bubo, lungs, liver and spleen of dead patients and he immediately made a culture in agar agar On the same day he took with all due precaution some blood from the finger tips of patients suffering from the disease in a severe form and again found the bacillus. He then inoculated mice, guinea pigs and rabbits with the virus and in every instance the animals so innoculated displayed the symptoms of the disease and died.' Kitasato worked in a matshed within the Kennedy Town Hospital compound and made his discovery there. Following the discovery a telegram was sent immediately to the medical journal, the Lancet, later a full-length report was dispatched on July 10th. Both Ayoyama and Ishiyumi contracted the disease, the former from nicking his finger while doing an autopsy He survived to write a paper entitled “On the Plague Epidemic in Hong Kong in the years 1894 to 1895".
The bacillus was also discovered by the French bacteriologist, Dr. Alexandre Yersin of Saigon's Pasteur Institute, who arrived in Hong Kong on June 15th. A few days later, he too found the bacillus. Lowson wrote on June 23rd: 'Got microscopes again out Yersin got his bacillus.' Lowson later added that Yersin refused to work in the same matshed with Kitasato and it took a few days to erect another for him. Yersin reported and sent material back to the Pasteur Institute in Pans After close scrutiny of the findings of both Kitasato and Yersin in their published papers by independent observers, doubt was cast on Kitasato's bacillus. The difference in the characteristics between his and Yersin's bacillus is highly technical and need not concern us. In the end, Yersin's was regarded as the real discovery, and the generic name given to the plague and allied organisms is subsequently Yersinia in his honour. To complete the story, although both of them knew that dead rats found in infected areas died of plague they were unaware of the part played by fleas, which was discovered later by the Indian Plague Investigation Committee and others in the Indian Epidemic, about 1906-1908.
This then is an account of the situation as it developed in first few months of the Epidemic as related in Lowson's diary. In several entries
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