“…Algal polysaccharides such as carrageenan, fucans, nostoflan, naviculan, alginates, calcium spirulan, galactans, and laminarin have been tested in term of their antiviral efficacy toward viruses such as DENV, HIV, hepatitis A virus (Hep A) virus and herpes simplex virus-1 and −2 (HSV-1 and HSV-2). Lectins, such as cyanovirin, microvirin, griffithsin, scytovirin, and phlorotannins, which are proteins that bind reversibly to certain mono and oligosaccharides that are lacking catalytic activity, have also been tested to counteract several viruses including HIV [ 18 ]. Another promising agent is a polypeptide derived from microalgae called griffithsin (GRFT).…”