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Immunohistopathology in the lungs of WT, IL-5Tg, Eot−/−, IL-5−/−, and EotIL-5−/− mice with FI-RSV vaccine-enhanced disease. The images are representative of lungs from each of the different groups of mice. Sections were stained with H&E and are shown at ×400 and ×100 magnifications. Eosinophils are indicated by arrows. The data shown are representative of two separate experiments.
