Simple, differential staining technique for enumerating rickettsiae in yolk sac, tissue culture extracts, or purified suspensions.

AUTOR(ES)

Silverman, D J

RESUMO

A differential staining method employing acridine orange-stained rickettsiae and safranin-stained standardized suspensions of Shigella dysenteriae is described for enumerating rickettsiae harvested during various stages of the growth cycle.

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