ANTIVIRAL AGENT

摘要

This antiviral agent comprises, as an active ingredient, an extract derived from a microalga Pseudochoricystis ellipsoidea Sekiguchi et Kurano gen. et sp. nov. MBIC11204 strain. The microalga may be cultured in a culture medium comprising sufficient nitrogen or may be cultured in a nitrogen-deficient medium thereafter. The extract is extracted from the microalga with alcohol, hot water, etc. as an extractant. The extract may be extracted from the residue thereof with hot water. The antiviral agent may comprise the extract obtained using one extractant or may comprise a mixture of each of the extracts obtained using multiple extractants.