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Table 3 Biosafety levels for the potential Bacillus anthracis surrogates (from the Biodefense and Emerging Infections Research Resources Repository)

From: Identifying experimental surrogates for Bacillus anthracis spores: a review

Species Biosafety laboratory rating
Bacillus anthracis Ames BSL 3
B. anthracis Sterne BSL-2
B. cereus BSL-2
B. megaterium BSL-2
B. atrophaeus BSL-1
B. subtilis BSL-1
B. thuringiensis BSL-1
Geobacillus stearothermophilus BSL-2
  1. BSL, biosafety level.