Scientists: India risks new epidemics
22/2/2008 16:35
India is facing a risk for emerging infectious diseases (EIDs) as the human
population expands into natural wilderness, The Times of India reported
today. "India risks new epidemics as the human population expands into
natural wilderness, coming into contact with a diverse range of wildlife that
harbor unusual diseases," Kate Jones, a biodiversity scientist at the Zoological
Society of London and first author of the international study, told The Times of
India. She said there was an urgent need to prevent further intrusion into
areas of high biodiversity. Other zoonoses in India include incidences of
Japanese encephalitis in UP, the Surat plague, leptospirosis and more common
infections such as rabies and anthrax. Of special concern are zoonoses such
as bird flu, incidences of which have risen worldwide. Researchers from the
Zoological Society of London (ZSL), the U. S.-based University of Georgia and
Columbia University's Earth Institute analysed 335 incidents of previous disease
emergence, beginning from 1940, and determined that zoonoses are the current and
most important threat in causing new diseases to emerge. And most of these,
including SARS and the Ebola virus, originated in mammals. Worldwide, the
study found that disease emergencies have roughly quadrupled over the past 50
years. Also, more diseases emerged in the 1980s than any other decade -- likely
due to the HIV/AIDS pandemic, which led to other new diseases in immune-
compromised victims. In the 1990s, as per their report, insect- transmitted
diseases saw a peak, possibly in reaction to rapid climate changes that started
taking hold then. The team also prepared a detailed map highlighting the
world's hotspots for emerging infectious diseases. Besides India, sub- Saharan
Africa are the regions where there is increasing likelihood of EIDs. According
to the researchers, about 20 percent of known emergencies are
multi-drug-resistant strains of previously known pathogens like tuberculosis.
Xinhua
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