Travel-associated dengue cases increased in the United States in 2019

An observational report described travel-associated dengue cases in the United States from 2010 to 2021. The analysis, which did not report a specific sample size, found an increase in cases in 2019 compared to the periods 2010-2018 and 2020-2021. No specific intervention, exposure, or comparator was reported, and the report did not provide absolute numbers, effect sizes, or statistical measures for the observed increase.

No safety or tolerability data were reported, as the report focused on case trends rather than clinical outcomes or treatments. The analysis did not include a formal limitations section, but the absence of detailed methodological information, sample sizes, and statistical analysis are inherent constraints.

For clinical practice, this report serves as a surveillance update highlighting a temporal pattern. The observational nature and lack of detailed data preclude strong conclusions about causes or risk factors. Healthcare providers should consider dengue in the differential diagnosis for febrile travelers, recognizing that case numbers can fluctuate year to year based on multiple factors not explored in this brief report.