Flu Avert I.N. Vaccine is for the vaccination of healthy horses 11 months of age or older, as an aid in the reduction of clinical disease and viral shedding caused by equine influenza viruses of both the American and Eurasian lineages. Intranasal administration only. Requires reconstitution prior to administration. Supplied as a 10 single dose bottles with 10 nasal applicators. Equine intranasal vaccine Protects against Equine Influenza (A2) Modified live Safe in horses 11 months of age and older All vaccines are shipped Express 1-2 Days. A $29.95 flat rate fee is charged for all orders containing vaccines. Someone should be present to sign for and receive the vaccine order when it ships to you. For more shipping info click here. NOTE: This item cannot be shipped to Minnesota, Canada and P.O. Boxes. Use must be approved by your veterinarian.