This disclosure relates to formulations of peptide agents, e.g., antibodies and antigen-binding fragments thereof, that bind dengue viruses, and methods of their use.

Certain embodiments of the invention include methods and compositions for evaluating flaviviruses, such as Zika virus, for the purpose of identifying, typing, and/or categorizing/speciation of virus in samples using nucleic acid sequencing.

Certain embodiments of the invention include methods and compositions for evaluating flaviviruses, such as Zika virus, for the purpose of identifying, typing, and/or categorizing/speciation of virus in samples using nucleic acid sequencing.

The present disclosure relates to methods for inactivating a Zika virus which can be used in vaccines and immunogenic compositions. The present disclosure also relates to a method for determining the completeness of inactivation of an arbovirus preparation and to a method for determining the residual formaldehyde content in a pharmaceutical composition comprising an inactivated virus.

Disclosed herein are recombinant baculoviruses suitable for detecting the presence of arthropod-borne viruses in a biological sample of a test subject. The information derived from the detection may also be used to render a diagnosis on whether the test subject is infected with the arthropod-borne viruses or not, so that proper course of treatment may be assigned to the subject.

The present invention relates to chimeric yellow fever—Zika strains and attenuated versions thereof, wherein the nucleotide sequence encoding the signal sequence and prME protein of said yellow virus is replaced by a nucleotide sequence encoding the signal sequence and the prME protein of a Zika virus.

Isolated peptides that include one or more antigenic sites of Zika virus (ZIKV) and methods of their use and production are disclosed. The peptides can be used, for example, to detect exposure of a subject to a flavivirus infection, such as a ZIKV infection.

Chimeric flaviviruses that include non-coding regions, non-structural proteins, a capsid (C) protein and a portion of a premembrane (prM) signal sequence from an attenuated or wild-type dengue serotype 2 virus (DENV-2), and a portion of a prM signal sequence, a prM protein and at least a portion of an envelope (E) protein from a Zika virus (ZIKV) are described. Also described are immunogenic compositions and methods for eliciting an immune response in a subject, such as an immune response directed against ZIKV.

The present invention discloses a live attenuated strain of Zika virus (ZIKV) having a deletion in the 3′ untranslated region (3′UTR) of the viral genome, which may affect viral RNA synthesis and sensitivity to type I interferon inhibition, but may not affect viral RNA translation. The present invention also discloses the use of these live attenuated ZIKV strains in the preparation of ZIKV vaccines and for providing immunoprotection against ZIKV infection and congenital ZIKV syndrome, particularly in pregnant females.

A menu of mutations was developed that is useful in fine-tuning the attenuation and growth characteristics of dengue virus vaccines.