bacillus

Anthrax, or Bacillus anthracis, is spore-forming bacteria found in soil that most commonly affects cattle.

Might Stevens have encountered spores of Bacillus anthracis during a recent hike through woods in North Carolina?

There are a number of bacilli, called acid-fast bacilli, which stain in the same way as the tubercle bacillus.

It, or a similar bacillus, is sometimes found in the sputum of gangrene of the lung.

Ordinarily, no attempt is made to identify any but the tubercle bacillus and the gonococcus.

The great majority belong to the colon bacillus group, and are negative to Gram's method of staining.

This will show all bacteria except the tubercle bacillus, and often no other stain is necessary for their identification.