Effect of the PRRS attenuated strains immunized via genital tract on the IgA levels in sows’ local vagina and specific antibody in the serum
Effect of the PRRS attenuated strains immunized via genital tract on the IgA levels in sows’ local vagina and specific antibody in the serum
PRRS弱毒株生殖道免疫对母猪阴道局部和全身IgA水平及特异性抗体水平的影响