More than 1,800 readers of TheHorse.com responded to a poll asking, "When do you vaccinate your horse(s)?" Results were as follows: Spring: 68.33% (1,243) It varies: 14.02% (255) Fall: 7.15% (130) My horses don't get vaccinations: 3.90% (71) Winter: 3.85% (70) Summer: 2.75% (50) Due to an error, only one answer was allowed. Several respondentss said they vaccinate more than once a year, with the majority vaccinating in ...