TAMPA, Fla.--(BUSINESS WIRE)--Walgreens, the country’s largest drug store chain, will offer EvoraPlusTM, the groundbreaking oral care probiotic mint from Florida-based biotechnology company Oragenics, Inc. (OTCBB: ORNI) (www.oragenics.com) chain-wide beginning March 19, 2010. The introduction of EvoraPlusTM into Walgreens’ retail locations follows the successful launch of the innovative oral care product on the retailer’s website (www.walgreens.com). EvoraPlusTM will now be available both at all of Walgreens more than 7,000 locations as well as its popular online destination www.walgreens.com.