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. 2020 Jul 10;8:618. doi: 10.3389/fcell.2020.00618

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Copyright © 2020 Li, Wang, Ji, Pei, Zhao, Zhou, Hong, Han, Wang, Wang, Li and Wang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Different clinical symptoms reflect different transmission pathways of SARS-CoV-2. Patients with different clinical symptoms may be closely related to the route of the virus during transmission. The infection sites of virus causing different clinical symptoms and directly affects the course of disease.