Helps protect the birds' immune system. Administer through the water at 7 & 21 days. Vaccines are shipped in an insulated box with ice packs. A boxing and handling charge of $25.00 will apply. Up to 4 vaccines can be put into one box. Vaccines must be delivered within two days, express shipping cost will also apply and can only be shipped Monday-Wednesday. A signature is required upon delivery. VACCINES CANNOT BE RETURNED.