Dikken H, Kmety E, de Geus A, Adinarayanan N, Timmer V E
Trop Geogr Med. 1978 Dec;30(4):537-42.
Two new serovars in the leptospira Hebdomadis serogroup are described following parallel investigations by the "classical" comparative cross-agglutinin absorption test method and by a method derived from factor analysis. The serovar names nyanza with reference strain Kibos and dikkeni with reference strain Mannuthi are proposed.