1887

Abstract

SUMMARY: A comparison of an indirect method of counting virus particles (i.e. the ‘absolute assay ’ haemagglutination method) with direct electron-microscope counts showed that the indirect method underestimated the total virus particle count by a factor of about 10. Details of technique and possible sources of error in making counts are discussed.

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/content/journal/micro/10.1099/00221287-16-3-668
1957-06-01
2024-05-05
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