* Micrococcus spp.
These organisms were obtained from pus or were designated as staphylococci [i.e., pathogenic micrococci (Blair in Dubos, 1948)].
Natural vectors.—Blatta orientalis, Italy (Spinelli and Reitano, 1932); Germany (Jettmar, 1935).
Blattella germanica, Germany (Jettmar, 1935).
Experimental vectors.—Blattella germanica, on shipboard (Morrell, 1911); Germany (Vollbrechtshausen, 1953).