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. 1970 Sep;20(3):369-70.
doi: 10.1128/am.20.3.369-370.1970.

Evaluation of liquid nitrogen storage for preservation of group A streptococcal M protein-sensitized sheep red blood cells

J H Mathews, R A Zimmerman

Evaluation of liquid nitrogen storage for preservation of group A streptococcal M protein-sensitized sheep red blood cells

J H Mathews et al. Appl Microbiol. 1970 Sep.

Abstract

Streptococcal M protein-sensitized sheep red blood cells stored in liquid nitrogen showed insignificant change in titer when tested against homologous antisera over a 6-month period. This method eliminates much of the preparation time required for the passive hemagglutination procedure and increases the reproducibility of the test.

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References

    1. Am J Clin Pathol. 1968 Jan;49(1):132-4 - PubMed
    1. Appl Microbiol. 1968 Nov;16(11):1640-5 - PubMed

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