Abstract:
The present invention is directed to methods and apparatus for creating a sustained release pathogen vaccine for COVID-19, influenza, HIV and other infectious human and animal viruses and pathogens using supercritical, critical, or near-critical fluids with or without polar cosolvents for simultaneously inactivating virions and pathogens, and encapsulating the inactivated virions and pathogens in biodegradable polymer nanospheres for administration to a patient. The present invention continuously inactivates SARS-CoV-2, influenza, HIV and other infectious human and animal viruses and pathogens, and nanoencapsulates the inactivated virions and pathogens in biodegradable polymer nanospheres to provide a safe and effective sustained-release vaccine, especially for the frail and elderly.
Abstract:
La invención se refiere a una variante atenuada del virus de la fiebre del valle del Rift (VFVR) con mutaciones en la secuencia de aminoácidos codificada por los segmentos L, M y S del ARN del virus VFVR; composición farmacéutica o veterinaria que comprende la misma; variante atenuada del VFVR para uso en la prevención de la fiebre del valle del Rift y vacuna de la fiebre del valle del Rift que comprende la variante atenuada del VFVR. Además, se incluyen variantes atenuadas del virus VFVR con las mutaciones Gly924Ser y Alal303Thr en la proteína L, y la sustitución Pro82Leu en la proteína NSs.
Abstract:
Provided is an inactivated vaccine for SARS-Cov-2, and the preparation thereof. Also provided is a method for treatment or prevention or immunization against diseases associated with SARS-Cov-2 viruses infection, comprising administrating to a subject a pharmaceutical composition or a vaccine comprising a pharmaceutically effective amount of the inactivated SARS-Cov-2 virus and a pharmaceutically acceptable carrier.
Abstract:
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.
Abstract:
The present invention encompasses porcine epidemic diarrhea virus (PEDV) vaccines or compositions. The vaccine or composition may be a vaccine or composition containing inactivated PEDV. The invention also encompasses epitopes or immunogens which can be used to protect porcine animals against PEDV.
Abstract:
Methods for continuously inactivating virus during manufacture of a biological product are provided. The methods include steps of (1) combining (a) a composition including a biological product, and (b) a composition including a virus-inactivation reagent, to obtain (c) a treatment composition having a predetermined property for inactivation of a virus, (2) confirming that the treatment composition exhibits the predetermined property, (3) transferring the treatment composition to a treatment vessel that includes an inlet, an outlet, and a static mixer, the transferring occurring at the inlet, (4) incubating the treatment composition in the treatment vessel at a predetermined temperature while the treatment composition flows at a predetermined rate and contacts the static mixer, and (5) collecting the treatment composition from the treatment vessel at the outlet, wherein steps (1) to (5) are carried out continuously. Apparatuses and systems including such a treatment vessel are also provided.
Abstract:
An integrated "lab-on-a-chip" microfluidic device performs nucleic acid sample preparation and diagnostic analysis from test samples containing cells and/or particles. The device analyzes DNA or RNA targets, or both, from a common test sample. Dried and/or liquid reagents necessary for nucleic acid sample preparation and analysis are contained on the device, such that the device only requires addition of test sample. Clay mineral and alkaline buffer reagents are employed for overcoming the problems of nucleic acid degradation and contamination during sample preparation. The device may include a composite filter to separate plasma or serum from other blood constituents when the test sample is a blood product. The microfluidic device utilizes a plurality of microfluidic channels, inlets, valves, membranes, pumps, and other elements arranged in various configurations to manipulate the flow of the liquid sample, in particular, in order to prepare nucleic acids and perform further diagnostic analysis.
Abstract:
The present invention relates to a novel Japanese encephalitis vaccine and a novel process for making the same. The invention in particular relates to a Japanese encephalitis virus strain P20778 vaccine, wherein the viral adaptation and propagation is carried out in a medium which is free of serum and additives of animal origin. The virus may be propagated particularly in Vero cell line.
Abstract:
The invention involves inactivation of viral populations by treating the viral populations with a hydrophobic, photoactivatable crosslinking agent to crosslink proteins in the viral membrane, UV irradiation and further inactivation of the viruses using detergent(s). According to the invention, this method preserves the native structure of viral epitopes so that the inactivated viral preparations can be used in immunological compositions that will inhibit and/or prevent viral infection when administered to an animal.
Abstract:
Embodiments of the present invention provide methods and devices for filtering and/or inactivating toxic agents. More specifically, embodiments of the present invention provide methods and devices for filtering and/or inactivating toxic agents using chitosan filters.