sentence: On the other hand , the results of a short ‐ term repeated toxicity study in mice showing interstitial lung inflammation 70 days after subchronic ( 14 ‐ day ) inhalation of products containing Bacillus thuringiensis subsp. israelensis and Bacillus thuringiensis subsp. kurstaki , and indicating that CFUs were still detectable in one animal 70 days after exposure .