indirect immunofluorescence testing of ebv strain p ( 3 ) hr-1 and ibr-infected embryonic bovine kidney cells , with antisera prepared against partially purified ibr , mdv , and ebv antigens , revealed identical activity of the three antisera as demonstrated by brilliant nuclear fluorescence ( perinuclear clumping ) in p ( 3 ) hr-1 cells and evenly distributed cytoplasmic activity in 18-hr ibr-infected bovine kidney cell cultures .
C0007634
cells
C0010834
cytoplasmic