2021, Number 3
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Rev ADM 2021; 78 (3)
Role of oral tissues in SARS-CoV-2 infection.
Ortiz LL?, Morales LLA, Palazuelos RDF, Lam RJF, Castillo DLA
Language: Spanish
References: 42
Page: 167-175
PDF size: 221.30 Kb.
ABSTRACT
The COVID-19 pandemic caused by the SARS-CoV-2 virus is currently a global healthcare problem. The onset of this disease can exhibit several clinical manifestations ranging from mild to severe symptoms, depending on the individual's immune response. COVID-19 primarily affects the lungs by developing the Severe Acute Respiratory Syndrome (SARS) and the "cytokine storm", an exacerbated inflammatory reaction that can lead to multiorgan failure and consequently death. The angiotensin-converting enzyme 2 (ACE-2), present in several tissues in the human body, is known to act as the functional receptor of the SARS-CoV-2 germ facilitating its entrance into the cells. Such receptor is also present in diverse oral cavity tissues, indicating a latent route of infection due to its influence in the transmission mechanism by inhalation, either oral or nasal, of virus particles. Also, viral load in saliva and taste disorder symptoms like ageusia could indicate a viral infection in its early stages. This article presents evidence suggesting that several tissues in the oral cavity can be considered potential sites of SARS-CoV-2 infection, thus playing an essential role in the transmission mechanism and development of co-infections.
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