Provided is an antibody against enterovirus 71 comprising the amino acid sequence shown in SEQ ID NOS: 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, or 26 or functionally active homologues thereof. Also provided are methods for obtaining the antibody comprising (a) selecting a yeast expressing such an antibody from a yeast library, (b) culturing the yeast under conditions that the antibody is expressed, and (c) recovering the antibody from the culture. Also provided is a process for producing the antibody comprising (a) culturing a host cell under conditions that the antibody is expressed, (b) recovering the antibody from the culture, wherein the host cells are transformed or transfected for expressing the antibody against enterovirus 71. Also provided are pharmaceutical compositions comprising an antibody against enterovirus 71 and a pharmaceutically acceptable carrier or diluent, wherein the antibody has an anti-virus agent or detectable label attached thereto.