TSV-2, the only intranasal temperature-specific IBR-PI3 vaccine, gives cattle a head start on respiratory protection. Safe for all classes of cattle including pregnant cows and young calves. Protects newborn calves that are less responsive to systemic vaccines. Young calves facing new conditions or shipping stress benefit from the low stress of TSV-2. It is administered intranasally (in the nose), which is less stressful to the calf than an injection.