A METHOD FOR THE QUANTITATIVE DETERMINATION OF BACTERIOPHAGE.
1. In the case of the staphylococcus and antistaphylococcus phage studied, with the total volume of the mixture being kept constant, there exists a definite quantitative relationship between C(Phage) and the time required to reduce a particular concentration of growing phage-susceptible bacteria to an arbitrary turbidity end-point. 2. This relationship furnishes a basis for the quantitative estimation of bacteriophage. A method is described having an accuracy within +/-5 per cent.
Krueger
A P
AP
Laboratories of The Rockefeller Institute for Medical Research, Princeton, N. J.