Disclosed herein are methods for detecting and producing PoMV. Further, disclosed herein are immunogenic and/or vaccine compositions and methods for treating or preventing PoMV. The compositions and methods include immunogenic portions of PoMV including entry proteins. In at least particular cases, a mutated version of a portion of the PoMV is utilized, such as a deglycosylated, or amino acid substituted mutant of the spike protein.

Embodiments of the disclosure relate to the domain of virology of Paramyxoviruses. The disclosure concerns a method for producing self-assembling paramyxoviral particles and a method for identifying a compound able to inhibit the replication or the transcription of a Paramyxovirus. The disclosure also pertains to the nucleocapsid-like particles obtainable by the method of the invention and their use for biotechnological and pharmaceutical applications.

Described herein is a method of enhancing virus replication in permissive cells that express a receptor to FGF2 protein. The method includes administering FGF2 protein or a functional variant thereof and the virus to the permissive cells. An oncolytic virus having a genome that includes an open reading frame that encodes FGF2 protein or a functional variant thereof is also described.

Described herein is a method of enhancing virus replication in permissive cells that express a receptor to FGF2 protein. The method includes administering FGF2 protein or a functional variant thereof and the virus to the permissive cells. An oncolytic virus having a genome that includes an open reading frame that encodes FGF2 protein or a functional variant thereof is also described.

The present invention relates to the development and manufacturing of viral vaccines. In particular, the invention relates to the field of industrial production of viral vectors and vaccines, more in particular to the use of avian embryonic stem cells, preferably the EBx? cell line derived from duck embryonic stem cells, for the production of viral vectors and viruses. The invention is particularly useful for the industrial production of viral vaccines to prevent viral infection of humans and animals.

Described herein are processes for the purification of viruses and compositions thereof.

The present invention relates to a methodology for the generation of infectious ribonucleoparticles (RNPs) of negative-strand RNA viruses, and in particular of non-segmented negative-strand RNA viruses in yeast, especially in budding yeast. Accordingly, the patent application relates to a recombinant yeast strain suitable for the rescue of infectious non-segmented negative-strand RNA virus particles or infectious virus-like particles. The invention also relates to the use of the recombinant yeast to prepare vaccine seed and to the use of the produced RNPs or RNPs-like to prepare vaccine formulations. It also concerns the use of the recombinant yeast for the screening of libraries of DNA.

Reverse engineering has offered new ways of studying the pathology of RNA viral infections, new more efficient devices of synthesizing recombinant viruses and developing vaccines and also demonstrated the versatility and efficiency of RNA dependent RNA polymerase RDRP system as an expression system. However, the currently used methods require a repertoire of complex, difficult-to-use tools. Present invention describes, a simpler plasmid based mammalian expression system that uses the RDRP enzyme activity for expression of recombinant proteins or RNA from viral minigenomes and rescue of recombinant viruses from cDNAs encoding entire genome(s) of negative stranded RNA viruses. This system will be useful for expression of recombinant proteins, therapeutic RNA molecules including anti-sense and/or selecting interfering RNA and Ribozymes. This system can also be used for gene therapy and producing recombinant viruses for production of new vaccines.