Collections of adult Ixodes dammini in Indiana, 1987-1990, and the isolation of Borrelia burgdorferi.

The collection records for Ixodes dammini Spielman, Clifford, Piesman & Corwin in Indiana are summarized for the period 1987-1990. In 1990, 13 of 729 deer examined were found to harbor adult I. dammini ticks. Eleven of these ticks were collected from 10 deer at a site in Newton County in northwestern Indiana. Borrelia burgdorferi spirochetes were isolated from a single female I. dammini tick collected from this site.