people in charge of the actual cleaning and nature of the exposure. did you have someone that had active symptoms. were they just in the beginning phases or in a point where they were, for example, vomiting and they would actually be in the situation where they can transmit this bug. those are the things that really you need to take into effect to see if there's a real risk here or not. and then that guides what you need to do in order to decontaminate the area from there. >> everyone on such high alert. abc's dan childs, our managing editor of the medical unit. thank you for joining us. >> thank you. abc news will have more live coverage of this developing story later on "america this morning" and "good morning america." turning to something less serious, it's national pasta day. it's not that difficult to make your own noodles. see for yourself from our insomniac kitchen. in our next half hour, turning to innovative technology to stop high-speed chases in their tracks. new ways to end the pursuits, much less danger involved. you're watching "world news now."