North Indian state of Uttarakhand: a new hothouse of visceral leishmaniasis.

Visceral leishmaniasis (VL) has been reported in the last decade from the hilly state of Uttarakhand, India. We report 47 cases from the non-endemic Garhwal region of this state which, over the last 10 years, were treated successfully. We conclude that the transmission cycle of VL is established in this region. Effective vector control measures are warranted to prevent the disease becoming a health problem, albeit not a major one given its excellent response to drugs.