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  • Title: Development, standardization and assessment of PCR systems for purity testing of avian viral vaccines.
    Author: Ottiger HP.
    Journal: Biologicals; 2010 May; 38(3):381-8. PubMed ID: 20338785.
    Abstract:
    The European Pharmacopoeia (Ph. Eur.) requires avian viral vaccines to be free of adventitious agents. Purity testing is an essential quality requirement of immunological veterinary medicinal products (IVMPs) and testing for extraneous agents includes monitoring for many different viruses. Conventional virus detection methods include serology or virus culture, however, molecular tests have become a valid alternative testing method. Nucleic acid testing (NAT) is fast, highly sensitive and has a higher degree of discrimination than conventional approaches. These advantages have led to the development and standardization of polymerase chain reaction (PCR) assays for the detection of avian leucosis virus, avian orthoreovirus, infectious bursal disease virus, infectious bronchitis virus, Newcastle disease virus, infectious laryngotracheitis virus, influenza A virus, Marek's disease virus, turkey rhinotracheitis virus, egg drop syndrome virus, chicken anaemia virus, avian adenovirus and avian encephalomyelitis virus. This paper reviews the development, standardization and assessment of PCR for extraneous agent testing in IVMPs with examples from an Official Medicines Control Laboratory (OMCL).
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