Climate change is playing a significant role in the spread of dengue fever, with research showing that nearly a fifth of the world’s dengue burden can be attributed to rising temperatures. The study predicts that by 2050, climate change could be responsible for a 60% increase in dengue cases if emissions continue at their current pace. Places like Peru, Mexico, Bolivia, and Brazil could see spikes of up to 200% in dengue cases.
In the United States, more than 7,200 dengue cases have been reported so far this year, with Puerto Rico experiencing a significant rise in locally acquired cases. The study, which analyzed temperature records and dengue incidence data in 21 countries, found that mosquitoes that carry dengue are most efficient at transmitting the virus when temperatures are between 68 and 82 degrees Fahrenheit.
The research highlights the need for mitigation efforts such as vaccines and mosquito population control. However, the only FDA-approved dengue vaccine has been discontinued, posing challenges in preventing the spread of the disease. Severe dengue infections can be life-threatening, with symptoms including bleeding under the skin, in the nose, or in urine or stool.
Experts stress the importance of prioritizing vaccines, managing mosquito populations, and preparing healthcare providers for a potential increase in dengue cases globally. The research underscores how different regions are disproportionately affected by climate change’s consequences, emphasizing the need for targeted interventions to address the growing threat of dengue fever.
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