Minimize Reactivity

Vision® is a proven performer backed by over 95 years of blackleg prevention experience.

With Vision®, Intervet has developed an innovative production technique that assures the highest level of purity – from the processing of the antigens to the addition of the adjuvant. This process is called the Antigen Purge SystemTM because it involves four distinct phases, each of which is essential to the production of Vision.The APS process produces bacterin-toxoid that significantly reduces injection site defects.***

The four phase Antigen Purge SystemTM (APSTM)

1. Creates superior grade of antigen in bulk fluid.
2. Assembles and standardizes each component.
3. Antigen preparation that reduces fluid volume with new filtration technology.
4. Lowers dose volume by using a specially formulated variation of the patented Spur adjuvant.
   
   *** Data on file at USDA APHIS

Maximize Efficacy
Vision® combines the Antigen Purge System (APS) with the precise level of Spur to get the highest level of immunization and lowest level of injection site defects. Indeed, Spur is the element that makes APS possible.
	Keeps antigens in stable suspension for long periods of time, instead of settling out as antigens can with competitive adjuvants. The precise amount for immunization is administered for each animal with every single dose.   The unique, patented suspension properties of Spur provide more exposed available binding sites for the antigen plus an “entrapment” feature unlike any other adjuvant.   Spur has proven itself in millions of doses by offering a better immune response than vaccines adjuvanted with aluminum hydroxide.**   Spur, also, is less reactive at the site of injection than traditional adjuvants.**

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