Dengue is spreading in the Americas. Incremental changes in climate could help explain the disease's expansion, according to environmental scientists. But some dengue experts have called the link with climate "alarmist' and scientifically unsound.

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This study re-examines the notions in colonial India about the causes of malaria, specifically discussing the environmental reasons pointed to at the time. It shows how and to what extent some of the widely held ideas of the colonial era on environmental causation contributed to and, at the same time, shaped a kind of environmental awareness, which became a part of medico-social thinking in India. It also adds a new dimension to the thinking on malaria in colonial India by situating the environmental paradigm within a social and economic context.

This paper identifies paradigmatic shifts in the conceptualisation of fevers in British Ceylon, from agues and fevers in the early 1800s and fevers of particular regions in the mid-1800s to a powerful notion of malaria in the early 1900s. In the early colonial records, agues and fevers were seen primarily as a threat to European visitors to the tropics, including the colonisers. In contrast, the fevers of specific regions were identified as localised ailments endemic among the local population and somehow connected to the specifics of local ecology and the indolent nature of the natives.

THE second part of Frontline's interview with David Baltimore, the reputed American biologist and Nobel laureate, includes a discussion on a wide range of issues including his own research; funding

Hundreds of millions of people live and work in forests across the world. One vital aspect of their lives, yet largely unexamined, is the challenge of protecting and enhancing the unique relationship between the health of forests and the health of people.

There is a logic to the idea of neglected diseases. Historically the diseases poor people get largely in the poorer parts of the world haven t got enough attention from policy makers in national governments and multilateral agencies precisely because they

A warmer climate is playing havoc with both flora and fauna

Scientists and researchers try to figure out ways to curb rising carbon dioxide levels

global warming could lead to more than floods and inclement weather. It could facilitate the spread of tropical

The berries of an Ethiopian plant have been found to be effective against mussels, which are carriers of the schistosomiasis parasite.