In the US, alpha-gal syndrome is usually associated with bites from the lone star tick, but new cases were caused by black-legged and western black-legged ticks.
Herbs and supplements are the most common treatment offered by the clinics.
The virus was identified through sequencing of serum samples from patients in China with fever and recent tick bites.
Birds dispersed the ticks over average distances of 260 to 3,100 miles.
The virus was identified in 2% of 988 participants with tick bites.
Among all patients diagnosed with babesiosis, 41% were co-infected with the bacterium responsible for Lyme disease.
The disease is similar to Rocky Mountain spotted fever.
Seventeen patients with nonspecific symptoms such as fever and headache were ultimately diagnosed as having Wetland virus.
Most cases occurred in the summer among men and in residents of high-incidence states.
Powassan virus can have severe outcomes, with up to 50% of case-patients experiencing lasting neurologic symptoms.