Complex sentence: Successively, 24 isolates of "L. garvieae" from different fish species and geographic origin were studied by slide cohesion tests, using rabbit antisera against representative strains with diverse origins and by Dot blot assays.
Split into simpler sentences: Successively, 24 isolates of "L. garvieae" from different fish species and geographic origin were studied by slide cohesion tests. These tests were conducted using rabbit antisera against representative strains with diverse origins and by Dot blot assays.