Objective To observe the effcts of IFN-α2a on JEC’s proliferation infected with H3N2.Methods To test the effects of different concentrations of IFN-α2a on JEC cells at 0、1、4h post-infected by MTT assay. Results The absorbency increase after dealing with the different concentrations of IFN-α2a on JEC at 0、1h post-infected,while the value decrease at the group of 4h post-infected.Conclusions IFN-α2a can stimulate the proliferation of JEC infected with H3N2 at the early stage besides of inhibiting the growth o...