| Date | 1897 |
| Author | Wright |
| Contribution | Used heat-killed typhoid bacilli to vaccinate people against typhoid fever. |
| Reference | Garrison |
| Notes | Almroth (Sir Almroth) Wright. The result of work done in the previous year, this was the first killed-bacterium vaccine, and was also the beginning of a controversial program of vaccination, especially for military personnel. The controversy centered around statistical significance, and attracted the attention of professional statisticians. Garrison gives 1896-1897 for development of vaccine, and records that Wright was responsible for vaccination of over 3000 soldiers in India in 1898-1900. |
| Category | Immunology |
| Pathogen Class | Bacteria |
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