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Immunofluorescence analysis of CEM-SS cells infected at 1,200 × g (A) or 1 × g (B). Twenty-four hours after challenge, cells were fixed and stained with a p24gag-specific antiserum followed by a fluorescein isothiocyanate-labeled secondary antibody. Cells were also stained with 4′,6′-diamidino-2-phenylindole and visualized at a magnification of ×400.
