“…Its aetiological significance has not yet been elucidated. Streptomycin treatment was given in such cases by Holzel, Martyn, and Apter (1949), but they considered that it did not exert any specific therapeutic effect. Chloramphenicol treatment was tried out by Rogers, Koegler, and Gerrard (1949) in a small number of cases, and they found the results to be encouraging.…”