Google Dengue Trends, announced Monday evening, is intended to act as an early warning system for outbreaks of the disease.
Dengue affects about 100 million people a year, primarily in Bolivia, Brazil, Indonesia and Singapore. The disease is spread by mosquito bites. There is no vaccine or treatment, so public health workers focus on educating people in those countries about avoiding infection.
Though Dengue Trends is similar to Flu Trends, the new tool adds another layer of research, Google Correlate. Google Correlate, introduced last week, shows related search terms and provides a snapshot of search activity over a period of time. The idea behind it is to expose previously unknown connections among search terms.
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