No cure, no vaccine: Experts warn of rare Bourbon virus after first NY case

This material may not be published, broadcast, rewritten, or redistributed. ©2026 FOX News Network, LLC. All rights reserved. Quotes displayed in real-time or delayed by at least 15 minutes. Market data provided by Factset. Powered and implemented by FactSet Digital Solutions. Legal Statement. Mutual Fund and ETF data provided by LSEG. Fox News senior medical analyst Dr. Marc Siegel discusses the alarming rise of Powassan virus, a rare tick-borne disease, with 15 cases reported this year, following a record 76 in 2025. A rarely diagnosed tick-borne virus with no vaccine or specific treatment has been confirmed in New York for the first time, prompting researchers to warn that additional infections may be going undiagnosed. The Bourbon virus, "transmitted through the common lone star tick, could soon begin to complicate diagnoses if it becomes more prevalent this summer and in coming years," Stony Brook Medicine warned in a news release reporting on a study of the virus. Only six human cases have been reported since Bourbon virus was first identified in Bourbon County, Kansas, where the first known patient was diagnosed in 2014. That patient later died. The virus has been linked to