A quantity of pCEP4 CVB3VP1 DNA was prepared and purified. Sera harvested from mice inoculated with pCEP4 CVB3VP1 was applied for neutralization test.

• 大量制备并提纯pCEP4?CVB3VP1 DNA，用其接种BALB/C小鼠，取血清进行病毒中和试验。