Abstract
Summary
The preparation of PHE and their use in both tube and rapid plate HA and HAI procedures for the titration of influenza virus and viral antibodies are described. Such preserved cells have been stable, with respect to both resistance to lysis and sensitivity to hemagglutination by influenza virus, for a year. PHE showed good correlation in sensitivity with freshly washed human erythrocytes, and the rapid plate technic using PHE correlated well with tube HA and HAI procedures.
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