it is lucian jacobs. we know that dogs have amazing olfactory senses. tells about this new use for them in the fight against the pandemic. >> again, dogs, for centuries, physicians have used odor to detect illness, and they been used to detect myriad human diseases so it actually made sense for everyone, many teams around the world started trying to see if covid in an effective infected person, have an old factory single signal? very strong evidence coming out of france, finland, where they are using dogs in the airport and in the u.s., university pennsylvania. it is an obvious use of the dog's amazing ability. >> you mentioned the airport. in which environments might that be useful. it is not always realistic to give everyone a covid test. >> what the dogs are picking up is these volatile organic compounds and the way they're doing it in the lab where they're getting this incredible high positive accurate detection by the dogs is person puts a piece of gauze under their arm for 20 seconds and then if you pull that out, and set up the experiment where t

lucian records, the highest number of virus infections is single thing. ah, we begin with the worst unrest in safe africa for years process that began with the jailing of former president jacob zimmer, of transformed into fury against poverty and inequality. the military has been deployed to contain riot found looting in the provinces, and called zillow and the tao. this 45 people have been killed and hundreds more arrested. well, in depending the frustration is an economy and crisis when the struggling to emerge from life because worst cove with 19 epidemic long sense and restrictions of pushed unemployment to a record i of 32 percent. so that goes up to 42 percent among young people last school lives. now it's for me to miller. she joins as a form of wet. so estimate of what's happening, where you are. well, in fact, we've returned to alexandra township in johannesburg. specifically because the army has been deployed and we're seeing those boots on the ground now, just where we were a moment ago, the soldiers, so we're trying to stop shooting that seemed to be coming from people in the township police been trying to look for guns, converse, gave them and that made about 3