and i remember talking to peter daszak that this might be another sars-like event. >> peter daszak ishe president of ecohealth alliance. he has worked closely with the wuhan institute of virology and dr. shi. their collaboration was crucial in discovering the origin of the 2003 sars outbreak. the world health organization assembled a team including daszak, shi, and wang, considered one of the world's top emerging disease experts, to find the source of the deadly outbreak. these virus hunters were pursuing a theory that bats could be the origin of sars. the team headed to the hunan region of southern china to try to solve the mystery of sars. >> shi and other researchers started exploring caves in southern china, looking for bats that could have been the origin of that first sars outbreak. >> dr. john epstein was a researcher on that expedition. >> when we go into an environment like a bat cave to catch bats, we have to protect ourselves. that includes gloves, we wear a respirator, like a mask. and we'll wear eye protection. >> we're walking into caves that could carry the next pandemi

. >> reporter: peter daszak himself rejects accusations he is too close to chinese scientists he told me his connections will help the investigation. lester >> all right keir simmons, thank you. >>> when we come back, a teacher touched by an angel >>> finally, every child needs someone to believe in them and for one virginia man that person was a teacher who lifted him up at a scary time in his life and now he is a teacher inspiring his students and america. >> just remember that you're smart repeat after me. i'm kind. >> reporter: anthony swan's lessons are life lessons. >> every day i see my children, i affirm them. >> reporter: the fifth grade educator at rocky mount elementary school teaching from chapters of his own story. i think all of us had teachers growing up who just made that special impact who was that person for you? >> that was my fourth grade teacher. my personal angel. that's what i call her. when i was in her class in fourth grade social services knocked on her door and took me to a foster home. she grabbed me and she whispered in my ear. she said, anthony, everythin

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