Dictionary of Tropical Medicine
An agglutination test used in the laboratory to diagnose rickettsial diseases. It depends on a non-specific cross reaction between antibodies produced by the rickettsial infection with the OX-2, OX-19 and OXK antigens of the Gram negative rod, Proteus.
Epidemic jaundice. A severe form of leptospirosis caused by such serovars as Leptospira icterrohaemorrhagiae.
A serological test used to detect antibodies in the diagnosis of typhoid. Antigens detected are the O (somatic), H (flagellar) and Vi (virulence) antigens.
A posterior cervical lymphadenopathy indicative of early West African (Gambian) Sleeping Sickness due to Trypanosoma brucei gambiense.