Topics of articles in this issue include: Dr. Yung-Fu Chang--Developing a Vaccine Against Equine Lyme Disease; International Equine Neurology Conference to Honor John Cummings; Unveiling Highlights Annual Zweig Committee Meeting; Harry M. Zweig Memorial Fund for Equine Research--1997 Research Awards; A Look Back at 18 Years of Zweig-Funded Research: Zweig-Funded Accomplishments in Orthopedic Medicine: Repairing Cartilage Damage and Preventing Arthritis (Alan J. Nixon); Preventing The Early Changes that Lead to Osteoarthritis (James MacLeod); Improving Orthopedic Surgery Techniques (John Bertram): Committee Member Profile: Paul Mountain.