Over 4 million bottles of a popular Listerine mouthwash are being recalled after reports of possible product contamination. Johnson and Johnson says tests show "Listerine agent cool blue" rinse is contaminated with micro-organisms. The recall affects two flavors marketed mostly for kids--- Glacier Mint and Bubble Blast and covers all bottles that were sold or distributed since the product's launch last year. So far, the company says there have be no reports of health problems due to the contamination. People who have the product should stop using it immediately and call the company's consumer line at 1-888-222-0249 to obtain a full refund. The company says no other Listerine product is affected by the recall.