">Bacillus"
Natural infection.—Blatta orientalis, Germany (Heinecke, 1956): Disease organism found in the hemolymph of infected cockroaches. It can be spread by mouth and through wound infection. The animals died with symptoms of paralysis in 85-90 days. The organism has been isolated and is in the culture collection of the Institute for Microbiology and Experimental Therapy, Jena, under the numbers SG 896, Strain A; SG 897, Strain B; SG 898, Strain C.
Experimental infection.—Blattella germanica, Germany (Heinecke, 1956): Infected animals died in 26-30 days.
Periplaneta americana was unaffected even by heavy inoculations of the pathogen.
"Bacterium"
Source.—(I) Diseased silkworm larvae. (II) Diseased Ocneria dispar larvae and blood of Blatta orientalis.
Experimental infection.—(I)(II) Blatta orientalis, Europe (Filatoff, 1904): Organism pathogenic when injected, nonpathogenic when ingested.
(I) Cockroach, U.S.A. (Glaser, 1925): Organism pathogenic to cockroach when injected.
"Coccobacillus"
Natural infection.—Blatta orientalis, France (Hollande, 1934): Organism described morphologically.