Provided is an immunostimulator containing: chitosan and/or a chitosan derivative each having a weight-average molecular weight of 10k to 1000k; and an anionic surfactant, the immunostimulator being in particulate form. Also provided are a pharmaceutical composition and an alimentary product, each containing the immunostimulator as an active ingredient.

The present invention describes a recombinant herpesvirus of turkeys (rHVT) that can be used as a vector vaccine for poultry against infection and disease from multiple poultry pathogens. Specifically the rHVT expresses an infectious bursal disease virus (IBDV) viral protein 2 (VP2) gene and a Newcastle disease virus (NDV) fusion (F) protein gene from a first and a second expression cassette inserted in the unique small (Us) region, and expresses an avian influenza vims (AIV) haemagglutinin (HA) gene from a third expression cassette inserted in the unique long (UL) region of the genome of said rHVT either between the UL40 and UL41 genes, or between the UL44 and UL45 genes. This rHVT can be used to vaccinate poultry against MDV, IBDV, NDV and AIV.

A vaccine delivery method is presented that includes a composition including as one component a slurry matrix that is a liquid at room temperature and a gel at physiological pH, physiological salt concentrations and/or physiological temperatures and as a second component one or more antigens. Also included are methods of inducing an immune response in a subject and vaccinating a subject by administering such compositions.

The present invention discloses novel recombinant multivalent non-pathogenic Marek's Disease virus constructs that encode and express both Infectious Laryngotracheitis Virus protein antigens and an Infectious Bursal Disease virus protein antigen, and methods of their use in poultry vaccines.

The invention relates to recombinant viral vectors for the insertion and expression of foreign genes for use in safe immunizations to protect against a variety of pathogens. The invention also relates to multivalent compositions or vaccine comprising one or more recombinant viral vectors for protection against a variety of pathogens. The present invention relates to methods of making an using said recombinant viral vectors.

The present disclosure provides a recombinant herpesvirus of turkeys (HVT) and a preparation method and use thereof. The present disclosure specifically provides a recombinant HVT, where an exogenous gene is inserted in a spacer region between an HVT005 region and an HVT006 region of an HVT genome; and the exogenous gene is selected from a gene derived from the group consisting of a Newcastle disease virus (NDV), an avian influenza virus (AIV), and an infectious bursal disease virus (IBDV); the spacer region between an HVT005 region and an HVT006 region of an HVT genome is located between 8,867 nt and 9,319 nt of the HVT genome, and has a nucleotide sequence set forth in SEQ ID NO: 1.

Provided herein are methods and compositions relating to Infectious Bursal Disease Virus (IBDV), and vaccines for treatment and prevention thereof.

The invention relates to a bonding and forming device for an inner box of a paper box and surface paper. The bonding and forming device comprises a stand, a lifting platform, a paper box inner support member, a flanging pressing plate, an ejector pin, a left hairbrush, a right hairbrush, a first pushing part, a front hairbrush, a rear hairbrush and a second pushing part and also comprises a driving device, a first control device a second control device, a third control device, a fourth control device and a fifth control device, wherein the driving device is used for driving the ejector pin to rise or fall; the first control device is used for controlling the paper box inner support member to rise or fall; the second control device is used for controlling the left hairbrush and the right hairbrush to stretch; the third control device is used for controlling the first pushing part to stretch; the fourth control device is used for controlling the front hairbrush and the rear hairbrush to stretch; the fifth control device is used for controlling the second pushing part to stretch; an inhibiting device is arranged between the first control device and the driving device; and the paper box inner support member and the flanging pressing plate are respectively provided with a through hole for the ejector pin to pass through. By adopting the technical scheme, according to the bonding and forming device for the inner box of the paper box and the surface paper, provided by the invention, the inner box and other surfaces of the surface paper can be automatically bonded to be formed after a bottom plate of the inner box and the bottom surface of the surface paper are bonded. The degree of automation is high and the production efficiency is high.

The present invention regards a new and Improved HVT-vectored ND-IBD vaccine, comprising a recombinant HVT comprising the VP2 gene from IBDV and the F gene from NDV to a target animal. The recombinant HVT can be used in a vaccine for poultry, which displayed good viral vector replication, effective expression of the NDV F—and IBDV VP2 genes, improved immunoprotection against ND and IBD, and improved genetic stability over prior art constructs.

Provided herein are methods and compositions relating to Infectious Bursal Disease Virus (IBDV), and vaccines for treatment and prevention thereof.