A STUDY OF THE STORAGE STABILITY OF VIRAL ANTISERA.

Antisera prepared against certain viruses contained antibodies of particularly high titer and it seemed desirable to dilute them before distribution for use in diagnostic tests. A study was made of the stability of viral antisera stored undiluted and diluted under various conditions. It was found that, in general, the sera could be diluted, lyophilized, and stored, even at 37 °C for a year, with little or no loss of antibody titer if the diluent was 5% peptone or 10% bovine albumin rather than saline.