Stamina Plus Immune Power Plus for horses that are exposed to a large number of other horses

Recently Stamina Plus had a client with horses that were going to a week- long roping where there 1600 other horses from all over the country. I vaccinated the horses with Rhino Flu and started to feed them Stamina Plus Immune Power Plus before they left, during the roping and when they got home. These horses came home from the roping and never had a cough or any runny noses. The owners were very impressed as other horses at the roping had coughs and runny noses.