S2E38 Dengue Next Door: How an Imported Virus Becomes a Local Outbreak

In this episode of Infectious Dose, we follow the dengue transmission chain from traveler to mosquito to locally acquired infection. How does dengue become infectious inside a mosquito? Why do most imported infections go nowhere while some seed outbreaks? What can mosquito traps and viral genomes tell investigators? Why can a jump in reported cases give a misleading picture of when infections actually occurred? And at what point would local transmission become something more persistent?

Using Florida's current dengue outbreak as a case study, we'll explore the space between introduction, local transmission and establishment and why a growing outbreak does not automatically mean dengue has become endemic.

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