English: Gross and histologic appearance of the oral cavity of serpentovirus reverse transcription PCR (rtPCR) negative (A,C) and positive (B,D) Burmese pythons (Python bivittatus) from southern Florida, USA. In contrast to the gross appearance of a serpentovirus rtPCR negative Burmese python (A), snakes rtPCR positive for serpentovirus (B) variably showed reddening of the oral mucosa, particularly along the margins of the teeth, as well as increased amounts of mucoid oral material. Histologically, in comparison to the oral mucosa of a rtPCR negative Burmese python (C), snakes rtPCR positive for serpentovirus showed thickening of the oral mucosa (hyperplasia) as well as increased numbers of submucosal and mucosal lymphocytic infiltrates (D). Photomicrographs of H&E-stained oral mucosa at 400× total magnification.
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Captions
Images of a python, and tissue samples from a python, without (A,C) and with (B.D) serpentovirus infection
Uploaded a work by Steven B. Tillis, et al., "Divergent Serpentoviruses in Free-Ranging Invasive Pythons and Native Colubrids in Southern Florida, United States" Viruses 2022, 14(12), 2726 from doi.org/10.3390/v14122726 with UploadWizard