Citations:Leptospira asthenogen


 * 1926: Great Britain Bureau of Hygiene and Tropical Diseases, Tropical Diseases Bulletin, volume 23 (1926), page 736 (Bureau of Hygiene and Tropical Diseases)
 * They were 2–7 [μm?] long, are considered to be the agents of dengue, and are called Leptospira asthenogen. Pfeiffer’s reaction with the cultured organism is positive, and the patients’ serum agglutinated this also. The leptospira is immunologically distinct from the L. icterohaemorrhagiae.