Men at Civilian Conservation Corps camp get vaccine for spotted fever; lab workers prepare vaccine

Pan buildings of Civilian Conservation Corps camp / camp men in line to receive injection, another man down line maybe inspecting men for ticks / MS man in uniform giving injection to camp man, others in uniform look on / men leaving barracks carrying poles with cloth on end / WS pan landscape, can see men walking along in distance / men in woods waving poles with cloth on end / men shaking cloth / CU ticks being picked up by tweezers and put in tube / pan buildings; truck passing in front / pictures of wood tick, man using pointer / CU tick picture and pointer / scientists working in laboratory / man scooping out ticks onto scale / scoop emptying ticks into mortar; man places mortar on machine with pestle automatically crushing ticks / woman filling vial and placing top on with tweezers / CU bottles of Rocky Mountain spotted fever vaccine; another bottle placed with them / Note: exact month/day not known