Figure 2.

Morbidity and pathology of convalescent Syrian hamsters challenged with B.1.1.7 or B.1.617.2 strains of SARS‐CoV‐2. Following the challenge of convalescent animals, morbidity was assessed by daily weight measurements (A) as well as percent consolidation (B) and clinical score (C) of harvested lung tissues at 4‐ and 7‐day postinfection (DPI). The principal pathological sign in B.1.1.7 (D) and B.1.617.2 (E) challenged animals was bronchiole mucosal hyperplasia. SARS‐CoV‐2, severe acute respiratory syndrome coronavirus 2