ABSTRACTBackground The oral cavity is the most important link between the human body and the external environment and is well-equipped to protect the body against invading pathogens. Emerging data on the bidirectional relationship between oral health and the severity of COVID-19 symptoms has prompted us to reexamine our role as the guardians of the oral cavity - the true gateway to th... https://lockdownsecuritycanada.shop/product-category/wire-harness-kit/