• Journal: NIH Director's blog
  • Date: Oct. 13, 2015
  • Category: Media


Dr. Francis Collins, director of the National Institutes of Health, mentioned a study that used Project Tycho data in a post on his blog about El Niño events and dengue epidemics. The study, conducted by researchers at the University of Pittsburgh, used data of 3.5 million cases of dengue in eight southeast Asian countries from the Project Tycho database to examine the relationship between dengue epidemics and El Niño weather events. Analysis of the data of dengue cases, which came from 271 provinces within the eight countries, showed dengue transmission in densely populated areas had signature disease transmission patterns due to how close people live to one another.


Francis Collins

Related Project Tycho Datasets

Cambodia - Dengue

Cambodia - Dengue Hemorrhagic Fever

Cambodia - Dengue without Warning Signs

Lao People's Democratic Republic (Laos) - Dengue

Lao People's Democratic Republic (Laos) - Dengue Hemorrhagic Fever

Lao People's Democratic Republic (Laos) - Dengue without Warning Signs

Malaysia - Dengue

Malaysia - Dengue Hemorrhagic Fever

Malaysia - Dengue without Warning Signs

Philippines - Dengue

Philippines - Dengue Hemorrhagic Fever

Philippines - Dengue without Warning Signs

Singapore - Dengue

Singapore - Dengue Hemorrhagic Fever

Singapore - Dengue without Warning Signs

Taiwan, Province of China - Dengue

Thailand - Dengue

Thailand - Dengue without Warning Signs

Viet Nam - Dengue

Viet Nam - Dengue Hemorrhagic Fever

Viet Nam - Dengue without Warning Signs


Just as the severity of the winter flu fluctuates from year to year in the United States, dengue fever can rage through tropical and subtropical regions of the world during their annual rainy seasons, causing potentially life-threatening high fever, severe joint pain, and bleeding. Other years—for still unknown reasons—dengue fizzles out. While many nations monitor the incidence of dengue within their borders, their data arent always combined to track outbreaks across wider regions over longer times. Now, NIH-funded researchers and colleagues, reporting in Proceedings of the National Academy of Sciences, have linked an intense dengue epidemic that struck eight Southeast Asian countries starting in mid-1997 to high temperatures driven by the strongest El Niño event in recent times.

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