CDC Alert: Dengue Cases Spiked 84% In US Travelers 2023-24 As NIH Ends Research Linking Climate & Disease
Last week, the Centers for Disease Control and Prevention, or CDC, issued an urgent alert about dengue fever, a painful and sometimes deadly mosquito-borne illness common in tropical and subtropical parts of the world. Some 3,500 travelers from the United States contracted dengue abroad in 2024, according to the CDC, an 84 percent increase over 2023. “This trend is expected to continue,” the agency said, noting that Florida, California, and New York, in that order, are likely to see the biggest surges this year.
On Thursday, the United Kingdom Health Security Agency put out a similar warning, noting that there were 900 cases of travel-related dengue in the U.K. in 2024, almost 300 more infections than the preceding year. The two reports relayed a similar array of statistics about dengue, its symptoms, and rising caseloads. But the U.K. Health Security Agency included a crucial piece of information that the CDC omitted: It noted why cases are breaking records. “The rise is driven by climate change, rising temperatures, and flooding,” it said.
In the past, the CDC has readily acknowledged the role climate change plays in the transmission of dengue fever — but the political conditions that influence scientific research and federal public health communications in the U.S. have undergone seismic shifts in the months since President Donald Trump took office. The new administration has purged federal agency websites of mentions of equity and climate change and sought to dismantle the scientific infrastructure that agencies like the CDC use to understand and respond to a range of health risks — including those posed by global warming.
Last week, ProPublica reported that the National Institutes of Health, or NIH — the largest source of funding for medical research in the world — will shut down all future funding opportunities for climate and health research. It remains to be seen whether ongoing grants for research at this intersection will be allowed to continue. A few days later, U.S. Secretary of Health and Human Services Robert F. Kennedy Jr. announced his agency plans to cull 10,000 people from its workforce, including new cuts at CDC, an agency that was established in 1946 in order to prevent a different mosquito-borne illness, malaria, from spreading across the U.S. Taken together, the suite of directives will prevent the U.S. and other nations whose scientists rely on NIH funding from preparing for and responding to dengue fever at the exact moment when climate change is causing cases of the disease to skyrocket. The abrupt subversion of the personnel and institutions tasked with responding to a threat like dengue bodes poorly for future health crises as climate change causes carriers of disease like mosquitoes, fungi, and ticks to expand their historical ranges and infiltrate new zones.
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https://grist.org/politics/dengue-climate-change-trump-cuts-nih-funding-mosquito-borne-disease/
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