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O. volvulus is transmitted by sandflies, and their role in the transmission of onchocerciasis was discovered by the Scottish parasitologist Breadablane Blacklock in Sierra Leone in the mid-1920s (19). There are accounts of the history of onchocerciasis by Grove (105) and Muller (192).
Bacillus anthracis and Anthrax (This chapter has 5 pages) Â© 2009 Kenneth Todar, PhD Introduction The anthrax bacillus, Bacillus anthracis, was the first bacterium shown to be the cause of a disease.In 1877, Robert Koch grew the organism in pure culture, demonstrated its ability to form endospores, and produced experimental anthrax by injecting it into animals.Figure 1.ntroduction. The anthrax bacillus, Bacillus anthracis, was the first bacterium shown to be the cause of a disease. In 1877, Robert Koch grew the organism in pure culture, demonstrated its ability to form endospores, and produced experimental anthrax by injecting it into animals. Figure 1.