Topics of articles in this issue include: Nasal Spray Equine Influenza Vaccines Provide Long-Term Protection (Dorothy F. Holmes); Veterinary Immunologist Sorts Out Reasons for Equine Influenza Vaccine Failures (Judith Appleton); Learning How Strangles Attacks Horses Helps Improve Vaccine Potential (John F. Timoney); Harry M. Zweig Memorial Fund Supports Cornell Equine Research in 1989.