thank you. we appreciate it. we turn to news back here in the u.s. and more now on the people sickened by the chipotle-linked e. coli outbreak and 37 and the company says they're offering deepest sympathies to those affected an addressing the outbreak. this one including closing 43 restaurants in oregon and washington which they say they're cleaning and sanitizing and will conduct environmental and food testing at the restaurants an distribution centers and replace all food items, batch test some ingredients before resupplying and hire firms to assess and improve food safety standards. joining me now from the centers for disease control, the director there, dr. thomas freeden. great to have you here. only eight stores linked to the bacteria outbreak and closed 43. what's your reaction to the actions taken? is it enough? >> it's always a good idea to