It is called Kala Jwara in Ayurveda and Black Disease in Assam. It is also known by different names like Dum-Dum fever, Black Fever and visceral leishmaniasis.
It also occurs in Sudan and Africa, due to the bite of the sand fly Philebotomus argentipes.
Signs and Symptoms: The onset of fever will be irregular, with anaemia and enlargement of the spleen.
The WBC (white Blood Corpuscles) are less in count. The fever continues for 3-6 weeks and it recurs always with the enlargement of liver and spleen along with black spots on the forehead, palms, soles of the feet and face. There may be distension of the stomach with emaciation associated with pain in the bones of the legs and arms.
Treatment: In modern medicine Antimony preparations are used. Probably it may have been influenced by Ayurveda because even in Ayurveda Antimony is used as Shuddha Neelanjana in the dose of 100 mg. with Preehodarari Loha (100 mg).
Another remedy is: Shuddha Neelanjana (100 mg) with Amritarisha ( ½ ounce) with Loha Bhasma (100 mg + Katuki Churna (40 grains) twice daily.