Canyon Creek Schoolhouse Laboratory 100^th Anniversary

12. Bottle the vaccine in a sterile environment as this worker is doing in this 1931 photo.

The dosage is difficult to determine, but “Such irregularities are not surprising, however, when we recall that so little is known of the various factors affecting the process and mechanism of immunity.”

(Quote: "Rocky Mountain Spotted Fever: Vaccination of Monkeys and Man," Roscoe R. Spencer and Ralph R. Parker, Public Health Reports, Vol. 40, No. 41, October 9, 1925, pp. 2159-2167)  5.5 MB

Image: Office of NIH History and Stetten Museum, 1523-sl