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Stainer and Scholte's pertussis medium with an alternative buffer.

R A Lothe, L O Frøholm, G Westre

Journal of Biological Standardization

|April 1, 1985

Summary

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A modified Bordetella pertussis growth medium (MSS) using sodium glycerophosphate buffer is superior to the original Stainer and Scholte (SS) medium. MSS supports better bacterial growth and vaccine production quality, enhancing pertussis vaccine development.

Area of Science:

Microbiology
Vaccinology
Biotechnology

Background:

The Stainer and Scholte (SS) medium is a standard for Bordetella pertussis culture.
Tris buffer in the SS medium may have adverse effects on bacterial growth.

Purpose of the Study:

To compare the growth-promoting properties of the original SS medium and a modified version (MSS) for Bordetella pertussis.
To evaluate the impact of medium modification on vaccine quality.

Main Methods:

Comparative analysis of SS and MSS media using generation time and 'dilution to extinction' methods.
Assessment of vaccine potency and safety in animal models.
Agglutinogen expression analysis using specific factor sera.

Main Results:

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The MSS medium demonstrated superior growth promotion for Bordetella pertussis compared to the SS medium.
MSS supported bacterial growth from smaller inocula than SS.
No significant differences in vaccine potency or safety were observed between the two media.
Buffer modification did not affect agglutinogen formation.

Conclusions:

The modified Stainer and Scholte (MSS) medium is a more effective growth medium for Bordetella pertussis.
MSS offers advantages for vaccine strain cultivation without compromising vaccine quality.
Liquid media are preferable for optimal agglutinogen expression in Bordetella pertussis.