A composition is provided comprising a therapeutically active amount of vitamin K for administering to a subject as prophylactic for preventing or reducing the risk of developing severe disease or mortality by COVID-19 or a similar infectious disease, or as therapeutic for preventing said disease becoming more severe or reducing the severity of said disease. Also provided is a diagnostic test to estimate the risk of developing severe disease or mortality by COVID-19 or a similar infectious disease in a subject involving assessing vitamin K status in blood, serum or plasma of said subject.

A composition is provided comprising a therapeutically active amount of vitamin K for administering to a subject as prophylactic for preventing or reducing the risk of developing severe disease or mortality by COVID-19 or a similar infectious disease, or as therapeutic for preventing said disease becoming more severe or reducing the severity of said disease. Also provided is a diagnostic test to estimate the risk of developing severe disease or mortality by COVID-19 or a similar infectious disease in a subject involving assessing vitamin K status in blood, serum or plasma of said subject.

Anti-viral compounds and methods of using antiviral compounds are described. The compounds can be used in methods of reducing infection rate of a virus and in methods of treating a viral infection in a subject in need thereof. The virus can be a coronavirus, such as SARS-CoV-2.

Anti-viral compounds and methods of using antiviral compounds are described. The compounds can be used in methods of reducing infection rate of a virus and in methods of treating a viral infection in a subject in need thereof. The virus can be a coronavirus, such as SARS-CoV-2.

Anti-viral compounds and methods of using antiviral compounds are described. The compounds can be used in methods of reducing infection rate of a virus and in methods of treating a viral infection in a subject in need thereof. The virus can be a coronavirus, such as SARS-CoV-2.

Embodiments of the present invention relate generally to compositions and methods and uses thereof for preventing, treating or ameliorating the symptoms of Coronavirus (CoV) infections, for example, the novel coronavirus disease 2019 (COVID-19) that is caused by SARS-CoV-2, in a subject in need thereof. Such compositions comprise certain metallothionein analogs, e.g., compositions comprising a glutathione precursor and a selenium source that elevate intracellular glutathione. The methods comprise administering to the subject a composition, e.g., a composition comprising a glutathione precursor and a selenium source, which is capable of inhibiting the intracellular replication and/or infectivity of coronaviruses, particularly the SARS-CoV-2 virus or viral particles thereof.

Embodiments of the present invention relate generally to compositions and methods and uses thereof for preventing, treating or ameliorating the symptoms of Coronavirus (CoV) infections, for example, the novel coronavirus disease 2019 (COVID-19) that is caused by SARS-CoV-2, in a subject in need thereof. Such compositions comprise certain metallothionein analogs, e.g., compositions comprising a glutathione precursor and a selenium source that elevate intracellular glutathione. The methods comprise administering to the subject a composition, e.g., a composition comprising a glutathione precursor and a selenium source, which is capable of inhibiting the intracellular replication and/or infectivity of coronaviruses, particularly the SARS-CoV-2 virus or viral particles thereof.

Embodiments of the present invention relate generally to compositions and methods and uses thereof for preventing, treating or ameliorating the symptoms of Coronavirus (CoV) infections, for example, the novel coronavirus disease 2019 (COVID-19) that is caused by SARS-CoV-2, in a subject in need thereof. Such compositions comprise certain metallothionein analogs, e.g., compositions comprising a glutathione precursor and a selenium source that elevate intracellular glutathione. The methods comprise administering to the subject a composition, e.g., a composition comprising a glutathione precursor and a selenium source, which is capable of inhibiting the intracellular replication and/or infectivity of coronaviruses, particularly the SARS-CoV-2 virus or viral particles thereof.

The present invention provides engineered tyrosine ammonia-lyase (TAL) polypeptides and compositions thereof. In some embodiments, the engineered TAL polypeptides have been optimized to provide enhanced catalytic activity while reducing sensitivity to proteolysis and increasing tolerance to acidic pH levels. The invention also provides methods for utilization of the compositions comprising the engineered TAL polypeptides for therapeutic and industrial purposes.

The present invention provides engineered tyrosine ammonia-lyase (TAL) polypeptides and compositions thereof. In some embodiments, the engineered TAL polypeptides have been optimized to provide enhanced catalytic activity while reducing sensitivity to proteolysis and increasing tolerance to acidic pH levels. The invention also provides methods for utilization of the compositions comprising the engineered TAL polypeptides for therapeutic and industrial purposes.