| [the etiology structure of the leptospiroses in bulgaria (author's transl)]. | in the course of many years the authors have studied the etiological structure of the leptospiroses in bulgaria and have typed a significant number of leptospira strains isolated from humans and animals. the strains have been isolated by the authors themselves for the most part, while some others have been received from other laboratories in the country. the contributions of other authors in this field have been taken into consideration. in identifying these strains use has been made of the meth ... | 1975 | 1179869 |