Sialic acid-containing sugar chain complex and a method for manufacturing, as well as, anti-influenza virus agent, and filter

摘要

A sialic acid-containing sugar chain complex characterized by comprising a C14-18 fatty acid, excluding a sphingolipid, that is bonded, via an amide bond, to an end other than the sialic acid end of a sialic acid-containing sugar chain, which contains sialic acid at one end, and having a molecular weight of 400-1,400; an anti-influenza virus agent which comprises said complex as the active ingredient; and a filter which carries said anti-influenza virus agent.