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SARS-CoV-2 particles and associated inflammation were seen in the olfactory nervous system of patients who had severe COVID-19, a report from Italy showed. Minimally invasive autopsy with nasal endoscopic dissection showed viral particles and CD163-positive microglial cells in the olfactory complex of two COVID patients, reported Patrizia Morbini, M.D., Ph.D., of University of Pavia, and co-authors in JAMA Otolaryngology.
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