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2 results about "Marker vaccine" patented technology

A marker vaccine allows for immunological differentiation (or segregation) of infected from vaccinated animals, and is also referred to as a DIVA (or SIVA) vaccine [Differentiation (or Segregation) of infected from vaccinated animals] in veterinary medicine. In practical terms, this is most often achieved by omitting an immunogenic antigen present in the pathogen being vaccinated against, thus creating a negative marker of vaccination. In contrast, vaccination with traditional vaccines containing the complete pathogen, either attenuated or inactivated, precludes the use of serology (e.g. analysis of specific antibodies in body fluids) in epidemiological surveys in vaccinated populations.

PCV2 ORF2 carrier platform

ActiveCN107531760BVaccinationVirus-like particle
The present invention relates to immunogen carriers, wherein said immunogen carriers are preferably virus-like particles (VLPs) comprising a plurality of modified PCV2 ORF2 proteins. In particular, the present invention belongs to the field of compliance markers and marker vaccines allowing to distinguish between infected and vaccinated individuals. In particular, it relates to compliance markers for vaccines comprising subunit antigens and DIVA (distinguishing infected from vaccinated animals) systems, which enable to distinguish between animals infected with a pathogen and animals treated with subunit antigens derived from said pathogen.
Owner:BOEHRINGER INGELHEIM ANIMAL HEALTH USA INC