Highly Pathogenic Simian Immunodeficiency Virus mne Variants That Emerge during the Course of Infection Evolve Enhanced Infectivity and the Ability To Downregulate CD4 but Not Class I Major Histocompatibility Complex Antigens

Volume 76, no. 13, p. 6425-6434, 2002. Page 6427: Figure 1 should appear as shown below.

FIG. 1.