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WEBSITE OF THE STATE OF SOUTH DAKOTA DEPARTMENT OF HEALTH
Kim Malsam-Rysdon, Secretary of Health

Bacillus anthracis — Special Stain

The India ink stain is used to stain capsules. Capsules appear as a well defined clear zone around the cell. Capsule formation may be evident in smears from clinical specimens, but not when the organisms are grown on most common laboratory culture media.

india ink stain
India ink stain
1000x oil immersion image enlarged to show detail.

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