This has nothing to do with food, but is so cool because of the bugs involved – and that they prey on Austin, Texas, hipsters who sleep in caves.
According to researchers, three people working in caves in the Austin area were diagnosed with tickborne relapsing fever (TBRF) last year, and two more tested positive for antibodies against the Borrelia bacteria that cause the disease.
The infections were identified by Austin Public Health (APH) and occurred mostly in people who had given guided cave tours, according to Stephanie B. Campbell, DVM, MPH, CDC Epidemic Intelligence Service officer, and colleagues.
Campbell summarized an investigation into the infections during a presentation at the annual EIS conference in Atlanta. She told Infectious Disease News that TBRF has been documented before in Texas caves, though it is unclear whether it has ever been reported in Austin-area caves.
The disease is rare, generally occurring in people who are bitten during the night by Ornithodoros ticks while sleeping in rodent-infested cabins or other rustic buildings where rodents have built nests, according to the CDC. The soft-bodied ticks — different from hard-body ticks like the ones that cause Lyme disease — live among rodents, feeding on them as they sleep. Tick and animal species were not collected as part of the investigation, so the report by Campbell and colleagues did not include which ticks may have been involved and what animals they were feeding on. But Campbell said O. parkeri ticks are found in Texas.
Campbell SB, et al. Evaluating the risk of tickborne relapsing fever among occupational cavers — Austin, TX, 2017. Presented at: Epidemic Intelligence Service conference; April 16-19, 2018; Atlanta.