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Home / Health / Dengue fever could threaten more than 6 billion people by 2080 when the climate warms, according to a study

Dengue fever could threaten more than 6 billion people by 2080 when the climate warms, according to a study



  New study shows that global warming is increasing the spread of dengue fever
  • A warming climate will contribute to the spread of mosquitoes that transmit dengue viruses.
  • The risk will increase worldwide, especially in the southeastern United States, on the coast of China and Japan and inland Australia.
  • More than 400 million people get sick each year from the disease and about 22,000 die.

Climate change could put some 6 billion people at risk of becoming infected with the dangerous and often fatal dengue fever by 2080, according to a new study.

Dengue viruses are mosquito-borne diseases which according to the Center for Disease Control and Prevention in more than 100 tropical countries usually affects people who live and travel in those countries. There are currently approximately 3 billion people living in dengue-prone areas, with up to 400 million people each year. Around 22,000 die from the disease.

While a warming climate will be a major contributor to the spread of mosquitoes, which increase susceptibility to dengue pathogens such as the Southeastern United States, the coastal areas of China and Japan, and the inland regions of Australia, other factors include urbanization and socioeconomic Change of importance will have an even bigger impact on the increased number of people at risk.

"What surprised most was, in fact, how much less widespread we predicted compared to previous Dengue maps. While climate change is likely to contribute to the expansion of dengue, factors such as population growth and increasing urbanization in tropical areas will play a much bigger role in shaping the future vulnerable, "said co-lead author Oliver Brady of the London School of Hygiene &

The largest changes in dengue risk are expected in Africa, particularly in the Sahel and southern Africa.

Simon I. Hay, Director of Geospatial Science at the Institute for Health Metrics and Evaluation and Professor Health Metrics Sciences at the University of Washington say the relocation will be particularly difficult for the most economically disadvantaged.

"We have found that Dengue's population is growing significantly and disproportionately in many economically significant areas "Disadvantaged and least able to cope with the increased demands on health systems, "he said.

endemic areas, not just the risk of expansion into Western states, "he added." Now take action by investing in experiments with novel vaccines and combating mosquitoes, curbing carbon emissions and planning sustainable population growth and urbanization are crucial steps to reduce the effects of the virus. "

( MORE: Canada plans to ban some disposable plastics within two years, says Prime Minister [19659006] Because there are four different types of dengue viruses, one person can become ill four times in their lives.

Symptoms of the disease can be mild or severe, including nausea and vomiting, rash, and pain. Most people recover within one About one in 20 people with symptoms develops heavy dengue, which causes a shock Internal bleeding to death: A person who has previously been infected with one or more of the four viruses is more likely to develop severe symptoms.

There is no other treatment for the virus than to rest, taking plenty of fluid acetaminophen, known under the brand names Tylenol and acetaminophen. Patients are warned not to take aspirin or ibuprofen because of the risk of excessive bleeding.


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