| [seroepidemiological studies of the detection of leptospires of the sejroe group in cattle in middle thuringia]. | from 1983 to 1989 14,361 head of cattle from the middle thuringia region were investigated by means of microagglutination test for the presence of leptospira serovars hardjo, saxkoebing and sejroe. 4,484 samples from cattle with abortion (1983-1985) and a random sample of 5,284 cattle sera (1985) were investigated giving priority to l. hardjo. furthermore 3,293 samples from cattle with abortion (1986/87) and a random samples test of 1,300 cattle sera (1989) were tested giving priority to l. saxk ... | 1992 | 1471971 |