Children receive polio vaccines and "dummy shots" as research continues into a preventative for the disease

LS a woman carrying a box-shaped case walks up steps to a building entrance; tilt up to inscription above door "Public School" / [unid location] MS a man in a bow tie administers a vaccine to a young boy; a seated woman looks on and an African-American nurse stands nearby / another man pins a large round button "Polio Pioneer" onto the smiling boy's shirt / slightly high-angled WS children walk between buildings on a school campus, enter a building at left / high-angle WS many children of diverse races in a school gymnasium or lunch room, waiting; seated adults also wait at tables; pan right across the groups of children / a young girl looks around as a woman with painted fingernails administers a vaccine to her / a doctor and nurse with a young boy // a woman, holding two young children by the hand and accompanied by three dogs, walks past a building labeled "Indian Trading Post, US Post Office, Nixon, Nev., Wa-Pai-Shone Craftsmen" / children run across a bare schoolyard, approaching and passing camera / 2-shot two young Native American girls / MS a Native American girl is given a vaccine by a Caucasian man as a Caucasian nurse stands by; the girl smiles // [unid location] VS children walk into school building, wait for vaccines as a man administers them in fg / a young African-American girl cringes as she receives a vaccine; then she and the man giving the shot both smile when it's done