Saliva is a non-negligible factor in the spread of COVID-19

Mol Oral Microbiol. 2020 Aug;35(4):141-145. doi: 10.1111/omi.12289. Epub 2020 May 31.

Abstract

SARS-CoV-2, a novel emerging coronavirus, has caused severe disease (COVID-19), and rapidly spread worldwide since the beginning of 2020. SARS-CoV-2 mainly spreads by coughing, sneezing, droplet inhalation, and contact. SARS-CoV-2 has been detected in saliva samples, making saliva a potential transmission route for COVID-19. The participants in dental practice confront a particular risk of SARS-CoV-2 infection due to close contact with the patients and potential exposure to saliva-contaminated droplets and aerosols generated during dental procedures. In addition, saliva-contaminated surfaces could lead to potential cross-infection. Hence, the control of saliva-related transmission in the dental clinic is critical, particularly in the epidemic period of COVID-19. Based on our experience of the COVID-19 epidemic, some protective measures that can help reduce the risk of saliva-related transmission are suggested, in order to avoid the potential spread of SARS-CoV-2 among patients, visitors, and dental practitioners.

Keywords: clinical practice guidelines; dental public health; epidemiology; infection control; infectious disease(s); oral medicine.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Betacoronavirus
  • COVID-19
  • Coronavirus Infections / prevention & control
  • Coronavirus Infections / transmission*
  • Dentists
  • Humans
  • Occupational Exposure
  • Pandemics / prevention & control
  • Pneumonia, Viral / prevention & control
  • Pneumonia, Viral / transmission*
  • SARS-CoV-2
  • Saliva / virology*