Mouthwash Recalled Over Concerns It's 'Particularly Unsafe' for COVID-19 Patients On 12/29/20 at 11:59 AM EST The company reported the product may be contaminated with the bacteria Burkholderia lata. Sunstar Americas noted using the contaminated mouthwash could lead to "oral, and potentially, systemic infections requiring antibacterial therapy. In the most at-risk populations, the use of the defective product may result in life-threatening infections, such as pneumonia and bacteremia." "Use of the contaminated product on patients with pre-existing respiratory conditions, including those infected with COVID-19, is particularly unsafe," Sunstar Americas added. On October 27, the company initially recalled 4-ounce and 1-pint bottles of the product with expiration dates between June 30, 2022 and September 30, 2022.