| Algal species | 
        Extract source | 
        Target Virus | 
        Reference | 
      
      
        Haematococcus 
          Pluvialisand 
          Dunaliella 
          salina | 
        Pressurized    liquid 
          extraction | 
        Herpes    simplex 
          virus    type 1 | 
        [25] | 
      
      
        Gyrodinium 
          Impudium 
          (sulfated 
          polysaccharide, 
          p-KG03) | 
        Sulfated    polysaccharide | 
        Influenza    virus  | 
        [26] | 
      
      
        | Naviculadirecta | 
        Polysaccharide | 
        HSV1 & 2, 
          Influenza    A virus | 
        [27] | 
      
      
        | Gyrodiniumimpudicum | 
        p-KG03 
          exopolysaccharides | 
        Encephalomyocarditis 
          Virus | 
        [28] |