Fig. 1From: Immunogenicity of adenovirus-vector vaccine targeting hepatitis B virus: non-clinical safety assessment in non-human primatesRepresentative histological sections stained with hematoxylin and eosin (HE) in the skin tissues at the injection site. Vehicle control group (a), low-dose group (b), mid-dose group (c), high-dose group (d), and Ad5-null control group (e). Infiltration of inflammatory cells (plasma cells, lymphocytes) was detected in the injected skin tissues (b–e). Images were captured under an Olympus BX50 microscope (magnification × 40)Back to article page