Occurrence of erythema migrans in children with Lyme neuroborreliosis and the association with clinical characteristics and outcome – a prospective cohort study

Erythema migrans (EM) is the most common manifestation of Lyme borreliosis (LB), caused by the spirochete Borrelia burgdorferi sensu lato. The infection can disseminate into the nervous system and cause Lyme neuroborreliosis (LNB), the second most frequent LB manifestation in children.