The epithelium is a type of tissue that covers many different surfaces on the inside and the outside of your body. Epithelial cells are packed tightly together and serve as a barrier between the ...
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) readily transmits in close contact through respiratory droplets. The nasal cavity is the primary site of viral entry; thus, SARS-CoV-2 ...
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