Patent ID: 9657263
Date: 2017-05-23
CPC Classifications: A61K,A61P,C12N

Claim:
1. A method for preventing infection of influenza B virus and inhibiting replication of influenza A virus or influenza B virus, comprising the steps of: providing a spirulina solution; and contacting the spirulina solution with the influenza A virus or the influenza B virus; wherein the spirulina solution is processed by the steps of (a) mixing spirulina and a non-organic solvent to form a suspension containing spirulina; (b) freezing the suspension with a temperature below 0° C. to form an ice block and the ice block being melted at a low temperature, the whole step being repeated at least twice; (c) separating the spirulina residues and solution; and (d) collecting the isolated spirulina solution; wherein the spirulina solution is a solution containing spirulina bioactive substances; wherein the influenza A virus is neuraminidase inhibitor-resistant influenza A virus.