− | The ''Bacillus'' species cause chronic granulomatous diseases including [Human brucellosis]. They target reproductive organs of certain species. Infected animals act as reservoirs of infection and organisms can remain viable in moist environment for months. They can also cause undulant fever in humans. | + | The ''Bacillus'' species cause chronic granulomatous diseases including [[Human brucellosis]]. They target reproductive organs of certain species. Infected animals act as reservoirs of infection and organisms can remain viable in moist environment for months. They can also cause undulant fever in humans. |