Kala-azar, or Dum-Dum fever, a mysterious disease somewhat similar to malaria, frequently fatal and extremely disabling, is so prevalent in Eastern India, particularly Assam, Bengal and Madras, that its transmission constitutes "probably the most important unsolved problem of tropical medicine," according to Dr. L. E. Napier and his colleagues, who have been doing research work on Kala-azar for several years at the
Calcutta School of Tropical Medicine. The Indian Medical Gazette, of Calcutta, devoted its July issue to a special Kala-azar number.
The treated cases of the disease have risen 200% in one province since...