Climate change, tropical diseases: Rural Bihar battle elephantiasis, & more

Far from the world of scientists studying climate change, the twin whammies of altered rainfall patterns and rising temperatures are being felt every day in villages such as Sher in Bihar where lymphatic filariasis and other neglected tropical diseases lurk in dank corners. Climate change, which brings with it floods and droughts, is also leading to more mosquitoes and sandflies and therefore a spike in diseases such as lymphatic filariasis, commonly known as elephantiasis, dengue and visceral leishmaniasis (VL) or kala azar. As the summer sets in, so does the threat of transmission of these diseases with the heat creating fertile breeding grounds for the vectors. Climate change is fundamentally altering vector ecology, favouring the survival and reproduction of disease carrying vectors like mosquitoes and sandflies, said Dr Bhupendra Tripathi, a New Delhi-based scientist. "This phenomenon extends their range and boosts their population densities, thus expanding vector habitats. ...