allison hajek, an emergency medical doctor to discuss the latest on the u.s.esponse and how it is impacting emergency rooms. agriculture secretary sonny perdue has sent this video message to america's agriculture sector and he pinned tweet on his twitter page. [video clip] >> this morning i want to speak from my heart to all you folks out there working on the frontline of our food supply chain. america,oiled in you've provide such abundant healthy, wholesome, affordable label food that we take you for granted. for all you people from the people who were stocking the shelves, people who were driving the truck to get the food to us who are processing the food and the people who grow the food and all the vendors that supply our farmers to help them grow the food whether it's fertilizer, feed or seed or any other input, thank you so much for what you are doing. i know these are uncertain times but i want to tell you from my heart as an american citizen i am so grateful for what you are doing and i want to thank you for doing that. i know there's a lot of confusion