During World War II, blood is tested for syphilis in US Army Second Service Command Laboratory in New York

VS soldier pouring blood serum from test tubes into other tubes / soldier looking at tubes in rack and shaking them / CU hands of soldier shaking tubes in rack / CU hands of soldier pouring blood serum from one tube into another tube / indistinct shot / soldier placing racks of tubes of blood serum in boxes / CU hands of soldier placing rack of tubes of blood serum in box / VS soldier, woman using pipettes to take blood serum from tubes for Kahn Test / racks of tubes being shaken by machine / soldier adding saline solution to tubes / Note: exact day not known