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UDDER INFECTION WITH STREPTOCOCCI OF THE SCARLET FEVER TYPE

UDDER INFECTION WITH STREPTOCOCCI OF THE SCARLET FEVER TYPE The clinical and bacteriological findings in two cows the udders of which became infected under natural conditions with hemolytic streptococci of the scarlet fever type are discussed. One of the cows was found in a herd supplying raw milk to a small town where a milkborne outbreak of scarlet fever had occurred a short time before. When small numbers of the streptococcus obtained from this case were injected into the udder of a normal cow severe mastitis accompanied by a well marked general reaction resulted. Evidence leads to the conclusion that a severe attack of mastitis due to this organism in one quarter does not sufficiently immunize the other quarters to protect them completely since the streptococcus can be readily implanted in them. The secondary infections were much milder than the original process. Footnotes Submitted: 8 March 1928 http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The Journal of Experimental Medicine Rockefeller University Press

UDDER INFECTION WITH STREPTOCOCCI OF THE SCARLET FEVER TYPE

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Publisher
Rockefeller University Press
Copyright
© 1928 Rockefeller University Press
ISSN
0022-1007
eISSN
1540-9538
DOI
10.1084/jem.47.6.945
Publisher site
See Article on Publisher Site

Abstract

The clinical and bacteriological findings in two cows the udders of which became infected under natural conditions with hemolytic streptococci of the scarlet fever type are discussed. One of the cows was found in a herd supplying raw milk to a small town where a milkborne outbreak of scarlet fever had occurred a short time before. When small numbers of the streptococcus obtained from this case were injected into the udder of a normal cow severe mastitis accompanied by a well marked general reaction resulted. Evidence leads to the conclusion that a severe attack of mastitis due to this organism in one quarter does not sufficiently immunize the other quarters to protect them completely since the streptococcus can be readily implanted in them. The secondary infections were much milder than the original process. Footnotes Submitted: 8 March 1928

Journal

The Journal of Experimental Medicine – Rockefeller University Press

Published: Jun 1, 1928

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