PROBLEM TO BE SOLVED: To provide an anti-human immunodeficiency virus agent composition that can be supplied readily in large quantity and has an effect of preventing HIV infection.SOLUTION: An anti-human immunodeficiency virus agent composition contains a sulfated polysaccharide containing, for example, one or both of fucoidan and ascophyllan, derived from seaweed such as Ascophyllum nodosum, as an active ingredient, and has an infection control activity on human immunodeficiency virus (HIV).SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】大量供給が容易で、ＨＩＶの感染を予防する効果を有する抗ヒト免疫不全ウイルス剤組成物を提供する。【解決手段】アスコフィラム・ノドサム（Ascophyllum nodosum）等の海藻由来の、例えば、フコイダン及びアスコフィランの一方又は双方を含む硫酸化多糖を有効成分とし、ヒト免疫不全ウイルス（ＨＩＶ）に対する感染予防活性を有することを特徴とする抗ヒト免疫不全ウイルス剤組成物。【選択図】図１
