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Study identifies climatic risks for dengue outbreaks
September 3 , 2017
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- A new study undertaken in India has identified the climatic risks for dengue disease outbreaks by evaluating the relationship of climatic factors in the spread of the disease in different climatic zones of the country.
- The research was jointly conducted by the University of Liverpool, Hyderabad-based Indian Institute of Chemical Technology, and National Institute of Pharmaceutical Education and Research (NIPER), Guwahati.
- The team studied the changes in a climatic factor of the dengue virus by taking into account daily and monthly mean temperatures in the states of India.
- The research found that climatic conditions play an important role in incubation period of Dengue virus. Lower temperatures between 17 to 18 degrees centigrade result in longer incubation period, thereby leading to decreased virus transmission. However, with increasing temperatures, incubation period become shorter because of enhanced metabolism of the mosquito.
- With an increase in temperature from 17 to 30 degrees centigrade, dengue transmission increases fourfold, the study found.
- It has been found that incubation period is the shortest during the monsoon season in most states and therefore there is an enhanced risk of dengue during this time.
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