The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 06, 2020
Filed:
Jun. 06, 2016
The University of Hong Kong, Hong Kong, HK;
Lit Man Poon, Hong Kong, HK;
Lok Yan Fan, Hong Kong, HK;
THE UNIVERSITY OF HONG KONG, Hong Kong, HK;
Abstract
Presented herein are live-attenuated viruses and methods of generating thereof from a parental virus through a plurality of nucleotide substitutions in the viral genome. The nucleotide substitutions result in a change in codon usage bias within codons of one or more protein encoding sequences and no change in amino acid sequences of the proteins. The live-attenuated viruses display unaltered replication in avian hosts for propagation, but attenuated replication in mammalian hosts, when compared to the replication of the parental virus. The live-attenuated viruses in a form of improved vaccines can be used to elicit protective immune responses.