An outbreak of equine herpes will delay the annual Pony Express Re-ride.  The National Pony Express Association postponed it indefinitely because of the outbreak in at least six western states.  The Re-ride had been scheduled to start June 8th in Saint Joseph.  About 600 riders would have helped relay the mochila through eight states to Sacramento, California.  There have been no cases of equine herpes in Missouri, but the Re-ride was postponed as a precaution.