Table 4.

Antiviral activity of fucoidans from different species of seaweed.

Fucoidan	Virus	Cell Line	IC50 (μg/mL)	Ref.
Cladosiphon okamuranus	Newcastle Disease (NDV)	Vero	0.75	[115]
Scytosiphon lomentaria	HSV-1, HSV-2	Vero	1.12–1.22	[112]
Sargassum henslowianum	HSV-1, HSV-2	Vero	0.48–0.89	[113]
Sporophyll of Undaria pinnatifida (Mekabu)	Influenza A	MDCK	15	[116]
Brown Algae: Fucus evanescens	HSV-1, HSV-2, HIV-1	MT-4	25–80	[117]