[The importance of aerobic spore-forming Bacillaceae in routine demonstration of microorganisms (author's transl)].

According to our studies the number of spore-forming bacilli at the average amounts to 2 to 15% within the air and food flora. Due to their presence in the air they can contaminate test samples. Likewise it is to be taken into consideration that they can cause pathological changes in susceptible organisms. In our laboratory we isolated aerobic bacilli from biological material in seven cases whereby pathogenicity was established in five cases thereof.