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The first microorganism to satisfy Koch's postulates (in the late 19th century) was
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Which one of the following is an important virulence factor of Bacillus anthracis?
In the fall of 2001, a series of letters containing spores of Bacillus anthracis were mailed to members of the media and to U.S. Senate offices. The result was 22 cases of anthrax, with five deaths. The heat resistance of bacterial spores, such as those of Bacillus anthracis, is partly attributable to their dehydrated state and partly to the presence of large amounts of
Which of the following is the most resistant to destruction by chemicals and heat?
Yersinia pestis, the causative agent of plague. Human plague can be bubonic or pneumonic. The primary epidemiologic difference between the two clinical forms of plague is
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