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. 2023 Dec 15;12(12):1456. doi: 10.3390/pathogens12121456

Figure 1.

Figure 1

Renal cortex with viral inclusions. (A) Hematoxylin and eosin-stained image of classic nuclear inclusions of BK virus (arrows). Bar = 50 µm. (B) Ultrastructural image of intranuclear BK virions (bar = 1 µm); inset of 40–45 nm virions (bar = 0.1 µm). (C,D) EM demonstrates 50 nm intracytoplasmic viral inclusions consistent with WNV (bars: C = 1 µm, D = 0.5 µm). (E) Light microscopic image of an unusual collecting tubule cast with irregular densities (arrows). Bar = 50 µm. (F) These unusual casts consist of aggregates of WNV. Bar = 200 nm.