Abstract
Summary
A simple method is described for the purification of the egg-white inhibitor of influenza virus hemagglutination by filtration of diluted egg-white through rapid-flow filter papers and extraction of the unfilterable residue. The inhibitor has been purified about 80-fold in this way. The method has proved useful also for the further purification of acid-purified inhibitor. The advantages and disadvantages of the new method are discussed in relation to those of other methods.
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