Figure 1From: Monoclonal antibody induced with inactived EV71-Hn2 virus protects mice against lethal EV71-Hn2 virus infection50% lethal dose (LD 50 ) assay. Two-day-old BALB/c mice were infected intraperitoneally with 100 μl of purified Hn2 virus in dilutions, ranging from 1TCID50 to 10000TCID50. The survival rates were observed for 21 days.Back to article page