Tests to quickly detect and identify Borrelia burgdorferi sensu lato in ticks found attached on people have been promoted by various companies.
Results may be unreliable. A negative test does not exclude a risk of Lyme borreliosis. A positive test does not reliably predict development of Lyme borreliosis and may lead to unnecessary antibiotic treatment.
In a position paper, ESGBOR explains the reasons of discouragement, the recommended measures and lists some relevant publications (also available in a German and French version).