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micrograph of skin infected with the smallpox variola virus
histologic changes in human skin that has been infected with the smallpox variola virus
transmission electron micrograph of a tissue section containing variola viruses
reduction in the normal thickness of the stratum corneum smallpox variola
cytoarchitectural changes which manifest inside confines of smallpox variola maculopapular lesion
micrograph depicts the variola smallpox virus using a negative stain technique magnification 65000x