1. age younger than 18 years old. 2. patients that are tested negative for covid-19 3. patient who are intubated or too sick to give consent for the study. 4. not able to speak in english or illiterate or lacking the decision-making capacity to consent for study. 5. known allergy to listerine, betadine or chlorhexidine gluconate

1. age younger than 18 years old. 2. patients that are tested negative for covid-19 3. patient who are intubated or too sick to give consent for the study. 4. not able to speak in english or illiterate or lacking the decision-making capacity to consent for study. 5. known allergy to listerine, betadine or chlorhexidine gluconate

age younger than 18 years old. patients that are tested negative for covid-19 patient who are intubated or too sick to give consent for the study. not able to speak in english or illiterate or lacking the decision-making capacity to consent for study. known allergy to listerine, betadine or chlorhexidine gluconate

age younger than 18 years old. patients that are tested negative for covid-19 patient who are intubated or too sick to give consent for the study. not able to speak in english or illiterate or lacking the decision-making capacity to consent for study. known allergy to listerine, betadine or chlorhexidine gluconate

1. age younger than 18 years old. 2. patients that are tested negative for covid-19 3. patient who are intubated or too sick to give consent for the study. 4. not able to speak in english or illiterate or lacking the decision-making capacity to consent for study. 5. known allergy to listerine, betadine or chlorhexidine gluconate

1. age younger than 18 years old. 2. patients that are tested negative for covid-19 3. patient who are intubated or too sick to give consent for the study. 4. not able to speak in english or illiterate or lacking the decision-making capacity to consent for study. 5. known allergy to listerine, betadine or chlorhexidine gluconate