Fig. 4.
Detection of SIV RNA by in situ hybridization in secondary lymphoid organs of SIVmac-infected rhesus monkeys.
Sections of spleen from animal 3KI (A) and lymph nodes from animals 575 (B), 297 (C), and IPI (D) are shown. In situ hybridization signals for SIV viral RNA are shown by blue signals.