people in san francisco what the rate of the virus infection is and we are working, again, with the uc berkley and ucsf colleagues to determine that number as quickly as possible to get the estimates and those will be very important in informing our models. with regard to whether models are helpful, yes, i think they are very helpful and they provide a number of plausible scenarios and they certainly do not provide certainty about where we're headed but provide plausible scenarios to help us plan our response going forward. >> the next question is from jamie harr of the associated press. the department of public health is sending health inspectors to conduct inspections at sros. how many are checking and what are you looking for or not looking for? >> so we are focus on a number of things, but particularly with regard to hygiene, making sure that the procedures are being followed and making sure that we're doing outreach and education to the community, around the social distancing order and making sure that people have the information they need and, also, making sure that people have the infor