accurate in her training. >> we heard of things like dogs. people will tell you an he he can't anecdotally sniffed their leg and found they had cancer. how were you aware this might work? 99%! >> actually, cobra and another dog had been trained for agriculture detection. they could be very reliable in something that's killing avocado trees here in south florida. we knew they were reliable for that. we said let's try to train them on covid-19. >> where does training take place? and how long does it take to train these dogs? >> so, we start off on what's called a training wheel, like a circle with different containers in it. then we go out into the field and do real-world type of