Figure 4.

Lung histopathology of infected Syrian hamsters 3 days after vaccination

Representative whole cross-sectional scans of left lung lobes (upper row, A–G) and micrographs of bronchial epithelium (bottom row, H–N) of formalin-fixed, paraffin embedded, hematoxylin and eosin-stained tissues. Hamsters were either mock-vaccinated (Mock), infected with SARS-CoV-2 (WT) or vaccinated with viruses CPD6, sCPD3, sCPD4, sCPD9, or sCPD10. Bars: 1 mm (A–G) or 100 μm (H–N).