All the following tests should be performed by sentinel laboratories to rule out the possibility of Bacillus anthracis from an isolate EXCEPT:

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In order to rule-out B.anthracis,the Centers for Disease Control and Prevention (CDC)has established basic diagnostic protocols.These protocols include a minimum number of common tests.Caution should always be used in working with an isolate suspected of being B.anthracis.Work should be done in a biologic safety cabinet,and the area should be disinfected when the work is complete.Approved tests to be performed by sentinel laboratories include Gram stain,colony morphology,catalase,motility,and capsule detection.The Gram stain can be performed directly on clinical specimens or on culture isolates.

All the Following Tests Should Be Performed by Sentinel Laboratories