Merck Bovilis® Nasalgen® 3

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Nasalgen 3 is a new intranasal vaccine that protects beef and dairy cattle (1 week of age or older) from the most common pneumonia-causing viral pathogens – Infectious Bovine Rhinotracheitis Virus (IBR), Bovine Respiratory Syncytial Virus (BRSV) and Parainfluenza 3 Virus (PI3). An industry-leading duration of immunity for IBR. No temperature sensitivity, so producers aren’t limited to when the vaccination can be administered. Excellent interferon response. Blue shadow dye, clearly indicating which animals have been vaccinated. Nasalgen 3 is proven safe for use in pregnant cows, and in calves nursing pregnant cows, as well as young calves. 2 ml per dose.

Long-lasting Duration of Immunity

  • Six and a half months against IBR
  • Three months against PI3
  • 11 weeks against BRSV

Dosing and Usage

  • Convenient, single 2 mL dose in one nostril
  • Mimics natural exposure to the most common causes of pneumonia for an effective immune response
  • SUPPLIED: 1-dose, 10-dose, 50-dose

Compendium of Veterinary Products - Bovilis® Nasalgen® 3 (MERCK ANIMAL HEALTH) (

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