Provided herein is a method for producing an inactivated virus including a) heating the virus to a temperature sufficient to disrupt the virus membrane; b) exposing the virus of step (a) to an RNA degrading enzyme; and c) cooling the virus to a temperature sufficient to reestablish the integrity of the virus membrane. Also provided herein is a vaccine produced using the instant method.

The present invention relates to a vaccine for protecting a pig against diseases associated with porcine epidemic diarrhea virus. The vaccine commonly includes inactivated/killed PEDV (e.g., chemically inactivated PED virus), and/or recombinant PEDV antigen and an adjuvant. Methods for protecting pigs against diseases associated with PEDV and methods of producing the porcine epidemic diarrhea virus vaccine are also provided.

The present invention relates to a vaccine for protecting a pig against diseases associated with porcine epidemic diarrhea virus. The vaccine commonly includes inactivated/killed PEDV (e.g., chemically inactivated PED virus), and/or recombinant PEDV antigen and an adjuvant. Methods for protecting pigs against diseases associated with PEDV and methods of producing the porcine epidemic diarrhea virus vaccine are also provided.

The invention discloses vaccine for coronavirus and influenza virus and method for preparation thereof. More specifically, the invention discloses seasonal viral vaccine i. e. coronavirus and influenza virus vaccine for prophylaxis of novel coronavirus (SARS-CoV-2) infection (COVID-19) and Influenza virus in mammals and method for preparation of such vaccine. The invention discloses the stable combination vaccine compositions of killed-inactivated SARS-CoV-2, Influenza virus (A and B strains) as antigens. The present invention further discloses method of adaptation and growth seasonal influenza (A and B) strains in cell culture and methods of inactivation and purification of influenza virus bulk antigen. The present invention also discloses SARS-CoV-2 vaccine formulation with inactivated Influenza viruses and use of the same to elicit immune response against the SARS-CoV-2 and Influenza viruses in mammals and humans.

Antiviral cationic polyamines were prepared by modifying polyethylenimines with N-acylating agents that introduce a side chain comprising one or more carbons and at least one alcohol hydroxy group. The cationic polyamines can have a linear or branched polyethylenimine backbone structure. Preferably, the cationic polyamines comprise pendant monosaccharide groups, which can be introduced via a cyclic carbonate comprising a pendant protected monosaccharide (e.g., mannose) group. The cationic polyamines can be active and selective against a broad spectrum of viruses at low concentrations, and are generally non-toxic.

The present invention is directed to novel immunogenic compositions that protect swine from disease caused by porcine epidemic diarrhea virus (PEDV). The present invention is also directed to novel immunogenic compositions that protect swine from disease caused by porcine deltacoronavirus (PDCoV), alone or as combination vaccine to protect against PEDV. The compositions of the invention provide killed viruses whose effectiveness is enhanced by the selection of preferred adjuvants. Novel culture methods are also employed to increase reproducible yield of cultured viruses. Live vaccines are also provided from the Calaf14 PEDV isolate.

Antiviral cationic polyamines were prepared by modifying polyethylenimines with N-acylating agents that introduce a side chain comprising one or more carbons and at least one alcohol hydroxy group. The cationic polyamines can have a linear or branched polyethylenimine backbone structure. Preferably, the cationic polyamines comprise pendant monosaccharide groups, which can be introduced via a cyclic carbonate comprising a pendant protected monosaccharide (e.g., mannose) group. The cationic polyamines can be active and selective against a broad spectrum of viruses at low concentrations, and are generally non-toxic.

The present invention is directed to novel immunogenic compositions that protect swine from disease caused by porcine epidemic diarrhea virus (PEDV). The present invention is also directed to novel immunogenic compositions that protect swine from disease caused by porcine deltacoronavirus (PDCoV), alone or as combination vaccine to protect against PEDV. The compositions of the invention provide killed viruses whose effectiveness is enhanced by the selection of preferred adjuvants. Novel culture methods are also employed to increase reproducible yield of cultured viruses. Live vaccines are also provided from the Calaf14 PEDV isolate.

Provided herein is a method for producing an inactivated virus including a) heating the virus to a temperature sufficient to disrupt the virus membrane; b) exposing the virus of step (a) to a nucleic acid degrading enzyme; and c) cooling the virus to a temperature sufficient to reestablish the integrity of the virus membrane. Also provided herein is a vaccine produced using the instant method.

The present invention relates to a production method of an inactivated SARS-CoV-2 vaccine, the method including: a step of bringing a SARS-CoV-2 containing solution or an inactivated SARS-CoV-2 containing solution into contact with a cellulose sulfate ester gel at a pH of 8 or more and 10 or less to adsorb the SARS-CoV-2 or the inactivated SARS-CoV-2 to the gel; then removing impurities; and then eluting and recovering the SARS-CoV-2 or the inactivated SARS-CoV-2.