The bacteria in scarlatinal and normal throats / Gustav F. Ruediger.

  • Ruediger, Gustav F.
Date:
1906
Catalogue details

Licence: In copyright

Credit: The bacteria in scarlatinal and normal throats / Gustav F. Ruediger. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    practically no virulence for these animals. Thirty-one rabbits weighing from 900 to 1,200 grams were injected intraperitoneally with Streptococc%is pyogenes cultures as follows: Four rabbits with a suspension of two forty- eight-hour bloocl-agar slant cultures of organisms iso- lated from normal throats. Three of these animals died and one remained well. Twelve rabbits with the same amount of suspension of organisms isolated from scar- latinal throats. Eight of these animals died and four remained well. Eight rabbits with a suspension of one blood-agar slant culture of organisms isolated from nor- mal throats. Eive of these animals died and three re- FiK. —Photograph of a blood-agar plate inoculated with mate- rial from a normal tonsil. Many small green and slightly hemo- lysing colonies and 5 Streptococcus pyogenes colonies. mained well. Seven rabbits with a suspension of one blood-agar slant culture of organisms isolated from scar- latinal throats. One of these animals died and six re- mained well. These results indicate that streptococci isolated from normal throats are slightly more virulent for animals than those isolated from scarlatinal throats. This is in perfect agreement with the results obtained by Hilbert® and Tunnicliff.^® 9. Zeitschr. f. Hyg., 1899, vol. xxxi, p. 381. 10. Trans. Chicago Path. Soc., 1904, vol. vi. p. 175.
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