>> i don't know about that, ana, but i will tell you, your grandmother told you, war yosh hands. >> myrandmother also used to tell me you eat so much dirt before you die so i'll stick with yours. >> yeah, so wash your hands. that's the big answer there and, yes, we have to keep ourselves spread out and for the foreseeable future we'll have to adhere to social distancing. we're going to be wearing those masks. that was shown in the second video. >> dr. long, also disturbing in nih study and that is referred to in the other video that fines droplets created when we talk and actually linger in the air for 8 to 14 minutes. now, just to be clear does that mean if you walk into a room where an infected person was, let's say five minutes before you, does that mean you can get the virus just by breathing in the air? >> so, ana, yes, it does mean that. it means that is possible but we do have to note that the chances of that diminish for every additional minute. it's not like the virus is hovering for hours. what this study found after someone was breathing and talking for about a minute, about