[Frequency of lyme borreliosis and diagnostic titers of antibodies to borrelia burgdorferi in patients with neurological diseases in endemic region of Russia].

The frequency of diagnostic titers of antibodies to Borrelia burgdorferi in 289 examinees suffering from neurological diseases made up 10.4%, while in the population this figure was under 1.9%. Lyme-borreliosis was detected in 11 (3.8%) patients, 2 of them had mixed infection with tick-borne viral encephalitis. In 10 patients (3.5%) the diagnosis of neuroborreliosis required verification with other techniques. It is thought valid to perform serological screening for neuroborreliosis only in patients with tick-born encephalitis to identify mixed infection.