Emerging pattern of Lyme disease in the United Kingdom and Irish Republic.

In the past year there have been 68 cases of Lyme disease in the United Kingdom and Republic of Ireland. 41 patients had erythema chronicum migrans, and 8 of them had associated neurological disease. 13 further patients presented with neurological disease without a preceding skin lesion. Myocarditis was present in 1 patient. Ixodes ricinus was confirmed as the vector for Lyme disease. In two areas deer were found to be infected by Borrelia burgdorferi, the causative organism of Lyme disease. 86% of 45 deer sera tested had significant antibody titres against B burgdorferi.