A well-known mouthwash brand "could increase risk of" cancer, according to some scientists who issued a warning over its usage. But the company has slammed the reports saying "there is no evidence that Listerine causes cancer".
Researchers from the Institute of Tropical Medicine in Antwerp, Belgium, discovered that two types of bacteria were more prevalent after three months of daily mouthwash use. The scientists identified two species of bacterium - Fusobacterium nucleatum and Streptococcus anginosus - both linked to cancer, were more abundant in the mouth after daily usage.