Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Med+Hypotheses 2021 ; 146 (ä): 110419 Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Is the oral cavity a reservoir for prolonged SARS-CoV-2 shedding? #MMPMID33309251
Troeltzsch M; Berndt R; Troeltzsch M
Med Hypotheses 2021[Jan]; 146 (ä): 110419 PMID33309251show ga
Limited knowledge about the contagiosity and case fatality rate of COVID-19 as well as the still enigmatic route of transmission have led to strict limitations of non-emergency health care especially in head and neck medicine and dentistry. There are theories that the oral cavity provides a favorable environment for SARS-CoV-2 entry and persistence which may be a risk for prolonged virus shedding. However, intraoral innate immune mechanisms provide antiviral effects against a myriad of pathogenic viruses. Initial hints of their efficacy against SARS-CoV-2 are surfacing. It is hypothesized that intraoral immune system activity modulates the invasion pattern of SARS-CoV-2 into oral cells. Thus, the significance of intraoral tissues for SARS-CoV-2 transmission and persistence cannot be assessed. The underlying concept for this hypothesis was developed by the critical observation of a clinically asymptomatic COVID-19 patient. Despite a positive throat swab for SARS-CoV-2, molecular pathologic analysis of an oral perisulcular tissue specimen failed to detect SARS-CoV-2 RNA. More research effort is necessary to define the true origin of the contagiosity of asymptomatic COVID-19 patients.