a) Marked lung alveolitis in an animal from the control group. H and E staining. 10Xoc.lens, 40Xobj.lens; b) Lung alveoli in hamsters after physical exertion and the use of lemongrass. H and E staining. 10Xoc.lens, 40Xobj.lens; c) Focal alveolitis in the lung of animals after ultra-high physical exertion and the use of an adsorbed drone brood preparation. H and E staining. 10Xoc.lens, 40Xobj.lens.