According to a study, dengue fever could pose a threat of more than 6 billion by 2080


New study reveals global warming will increase dengue spread
  • Global warming will contribute to the spread of mosquitoes that carry the dengue virus.
  • The risk will increase worldwide, but especially in the southeastern United States, the Chinese and Japanese coast and inland Australia.
  • More than 400 million contract the disease each year and about 22,000 die.

According to a new study, climate change could partly expose more than 6 billion people worldwide to dengue, a dangerous and often fatal disease.

Dengue viruses are diseases transmitted by mosquitoes according to the Center for Disease Control and Prevention, which generally affect people living and traveling in more than 100 countries in the tropics. Currently, about 3 billion people live in dengue-prone areas, and 400 million people become sick each year. Some 22,000 people die of the disease.

While global warming will be a major factor in the spread of dengue mosquitoes, regions such as the southeastern United States, coastal areas of China and Japan, and inland areas of Australia are more vulnerable. . an even greater impact on the growing number of people at risk.

"What was most amazing was actually the smallest stretch we expected compared to previous dengue charts. While climate change is likely to contribute to the expansion of dengue fever, factors such as population growth and increasing urbanization in the tropics will play a much larger role in determining who is at risk in the future. future, "co-authored senior author Oliver Brady of the London School of Hygiene and Tropical Medicine said in the press release.

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

Simon I. Hay, Director of Geospatial Sciences at the Institute for Metrics and Evaluation Health and Professor of Health Metrology at the University of Washington, said that this change would be particularly difficult for the more economically disadvantaged.

"We found that the population at risk of dengue fever would increase dramatically and disproportionately in many economically depressed areas and be less able to cope with increased demand for health systems," he said.

"Mitigation strategies need to focus on dengue endemic areas and not just on the risk of expansion in Western countries," he added. "Acting now by investing in innovative vaccine trials and mosquito control, reducing carbon emissions and planning for sustainable population growth and urbanization are crucial steps in reducing the impact of the virus. "

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Since there are four different dengue viruses, a person can get sick four times in his life.

The symptoms of the disease may be mild or severe and include nausea and vomiting, rash and pain. Most people recover in a week. About one in 20 people with symptoms will develop severe dengue fever that can lead to electrical shock, internal bleeding, and even death. A person previously infected with one or more of the four viruses is more likely to develop severe symptoms.

There is no cure for the virus other than rest, fluids, and acetaminophen, known as Tylenol and Paracetamol. Patients are advised to avoid taking aspirin or ibuprofen because of the risk of excessive bleeding.


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