The present invention relates to the asthma-protective effects of farm dust, specifically to a composition comprising barn dust extract including isolated fractions of an Amish barn dust extract comprising different bioactive components that have an ability to protect against asthma. In particular, the present invention describes a barn dust composition with asthma-protective properties, the barn dust composition comprising one or more bioactive fractions extracted from barn dust, said one or more bioactive fractions comprising one or more proteins and one or more fatty acids. The one or more bioactive fractions of the barn dust compositions may comprise molecular weights of 30-100 kDa, particularly 28-64 kDA, that include eight (8) target proteins, which have potential to proactively prevent the induction of asthma and to treat current cases of asthma. The present invention also relates to an in vitro method for screening allergic compounds.

An active or inactivated recombinant vaccine against COVID-19 is described that comprises a Newcastle disease viral vector and a pharmaceutically acceptable carrier, adjuvant and/or excipient, characterized in that the viral vector is a virus capable of generating a cellular immune response that has a SARS-CoV-2 exogenous nucleotide sequence inserted,

Compositions and methods for treating a viral infection may comprise use of an adenoviral vector. An adenoviral vector of the present disclosure may comprise a non-human adenoviral genome with one or more gene locus functionally removed and a transgene. A method of treating a viral infection may comprise administering a composition comprising an adenoviral vector of the present disclosure, to a subject and reducing the infectivity or transmission of the virus. Intranasal administration provides enhance protection of the upper respiratory tract of a subject relative to intramuscular administration.

An immunogenic composition, a periodontal vaccine formulation containing the immunogenic composition, and methods for treating or preventing periodontal disease are provided, where the methods involves administering an immunologically effective amount of the composition or vaccine formulation to a subject. The immunogenic composition contains at least one polypeptide that comprises: an Mfa1 antigen sequence that is substantially homologous to an immunogenic amino acid sequence from an Mfa1 fimbrilin protein of a Porphyromonas bacterium; and an HA1 antigen sequence, an HA2 antigen sequence, or both an HA1 antigen sequence and an HA2 antigen sequence, wherein the HA1 antigen sequence is substantially homologous to an immunogenic amino acid sequence from an RgpA Gingipain hemagglutinin domain 1 contained within an RgpA Gingipain protein of a Porphyromonas bacterium, and the HA2 antigen sequence is substantially homologous to an immunogenic amino acid sequence from an RgpA Gingipain hemagglutinin domain 2 contained within an RgpA Gingipain protein of a Porphyromonas bacterium.

Provided herein are anti-neuraminidase agents useful for neutralization of influenza virus infection, and methods of use and manufacture thereof. In particular, compositions comprising anti-neuraminidase agents (e.g., antibodies) that are cross-reactive with multiple influenza strains are provided, as well as methods of treatment and prevention of influenza infection therewith.

Aspects of the disclosure relate to nucleic acid vaccines. The vaccines include one or more RNA polynucleotides having an open reading frame encoding one or more Chikungunya antigen(s), one or more Zika virus antigens, and one or more Dengue antigens. Methods for preparing and using such vaccines are also described.

A vaccine composition for intranasal administration includes a Bordetella pertussis antigen, and an effective adjuvant amount of a high molecular weight glucose polymer. The high molecular weight glucose polymer may be a beta-glucan. The Bordetella pertussis antigen may be an extracellular toxin, an adhesion protein, an outer membrane protein, a receptor protein, a fragment thereof, or a mixture thereof.

Modified alphaviruses encoding a SARS-CoV-2 spike protein or antigenic segment of the SARS-CoV-2 spike protein are provided. The modified alphaviruses include replicative defective Sindbis viruses. The modified viruses express or are administered with an immunomodulatory agent that is an agonist antibody or antigenbinding fragment thereof, or a cytokine, or a combination thereof. Pharmaceutical compositions that include the modified alphaviruses and methods of using the modified alphaviruses and compositions that contain them are provided. The compositions are used to stimulate a therapeutic or protective effect against SARS-CoV-2 infection that includes humoral and cell mediated responses.

The present invention is intended to provide an adjuvant having high safety to living bodies and an action to sufficiently reinforce immune function, and a vaccine comprising the adjuvant. Specifically, the present invention relates to 34 novel adjuvant candidate compounds, which have been identified by screening 145 food additives and 51 injection additives, using, as indicators, an increase in the antibody titer against influenza virus and a protective effect against infection with influenza virus, and then selecting those having the function of increasing the antiviral antibody titer in blood and the protective effect against viral infection. In addition, the present invention also relates to a vaccine comprising these adjuvant candidate compounds.

A vaccine for preventing β-CoV infection includes at least one viral vector containing a β-CoV DNA sequence which codes the S protein for the β-CoV. The β-CoV RNA sequence can be a SARS-2 β-CoV DNA sequence. The vaccine may further includes a packaging plasmid based on an adenovirus. The viral vector and packaging plasmid can be contained in a packaging cell and encapsidated in a capsid. A method of vaccinating a mammal subject against infection from at least one group of β-CoV includes separating a broad group of β-CoV into homology groups based on similarities in the β-CoV RNA sequences which code for their S proteins, identifying at least one consensus sequence for each homology group which has a sequence identity of greater than 60% to all other members of the homology group, and preparing a viral vector including at least a portion of the consensus sequence from at least one homology group.