לא מצאתי כלום
אין תוצאות חיפוש עבור: results/People_can_be_immunised_against_a_disease_by_introducing_small_quantities_of_dead_or_inactive_forms_of_the_pathogen_into_the_body._Vaccines_stimulate_the_white_blood_cells_to_produce_antibodies_that_destroy_the_pathogens_(e.g._MMR_vaccine).,3,0,7033;11319;11375,0,25,1,tn,1.html