CU of white-frocked woman carrying out part of experiment in tissue culture, decanting fluid from one flask to another. Shot of other woman with red liquid in flask. MS of jar with live white mice. Shots, including CU, of woman inoculating white mice with virus solution. Two MSs, with ZOOM IN on needle, of woman inoculating eggs. MS and ZOOM IN on stage as laboratory worker looks into binocular microscope. Reverse angle of same. Shot of tray-full of vaccine vials being added to pile on truck, being wheeled away. Shots of automatic filling machine, two laboratory attendants supervising. CUs of vials on conveyor, hands packing vials in boxes. TILT UP from bowl of vaccine to woman filling vials by hand. CU of operation. HAS of other woman carrying out similar operation in laboratory.