supplies that you need. right now we do believe there s a shortage. it s disturbing to see the falling standards, keeping frontline health care workers safe. you can t talk about ppe without thinking about it in terms of patient safety and not spreading covid-19 from health care workers to patients. so right now we re negotiating with the hospital to make n-95 the standard for all nurses and frontline health care workers caring for patients who are positive for covid-19 or rollouts. we have all learned and gotten to know the name of hydroxy cloer reen. but 800 patients have been treated with the antimalaria drug. can you give us insight into how effective that has been.