“VAS” stands for Feline “Vaccine Associated Sarcoma.”  Some also call this disease “Injection Site Sarcoma” or "Vaccine Site Sarcoma".  VAS is any of a number of cancers, most commonly Fibrosarcoma, which are believed to be triggered by vaccinations and occasionally other kinds of injections.  VAS is primarily an issue for domestic cats, though it has been identified in ferrets and tigers, and recent research indicates that it may also occur in dogs.

VAS Awareness is an organization that was created with the main purpose of educating the public about this type of cancer in cats.

Our Four-fold Mission

1) To prevent and decrease the incidence of feline vaccine related cancers (also known as "Vaccine Associated Sarcoma" or VAS)

2) To support ongoing research involving feline vaccine related cancers, vaccine safety, effectiveness and/or duration of protection studies.

3) To raise the public's awareness of Feline Vaccine Associated Sarcoma while educating cat owners about current professional veterinary guidelines for vaccines and about the availability of safer, adjuvant-free vaccines.

4) To encourage and support profession-wide education of Veterinary professionals regarding VAS prevention through the use of current professional veterinary vaccination guidelines, and through the use of currently available, safer, adjuvant-free vaccines.