A human monoclonal antibody directed against the hemagglutinin antigen of influenza A virus, characterized in that it is capable of binding to a plurality of subtypes of influenza A virus and neutralizing them, wherein said plurality of subtypes comprises at least one subtype of the Influenza A virus that contains hemagglutinin H1 and at least one subtype of influenza A virus that contains hemagglutinin H3.Un anticuerpo monoclonal humano dirigido contra el antígeno hemaglutinina del virus de la influenza A, caracterizado porque es capaz de unirse a una pluralidad de subtipos del virus de la influenza A y neutralizarlos, en donde dicha pluralidad de subtipos comprende, al menos, un subtipo del virus de la influenza A que contiene hemaglutinina H1 y, al menos, un subtipo del virus de la influenza A que contiene hemaglutinina H3.
