The freeze-drying of Cowdria ruminantium

Lyophilized tissues of mice and blood of sheep, infected with either the Kümm, the Welgevonden or the Ball 3 stock of Cowdria ruminantium, remain infective to mice and sheep after storage at 4 degree C for 90 days. Freeze-dried tissues stored at -18 degrees C and -28 degrees C are still infective af...

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Bibliographic Details
Published in:Onderstepoort journal of veterinary research Vol. 57; no. 3; p. 145
Main Authors: du Plessis, J L, van Gas, L, Labuschagne, F J, Wijma, S
Format: Journal Article
Language:English
Published: South Africa 01.09.1990
Subjects:
Animals
Bacterial Vaccines
Cattle
Freeze Drying - methods
Heartwater Disease - prevention & control
Male
Mice
Rickettsiaceae - immunology
Sheep
Temperature
Time Factors
Vaccination - veterinary
ISSN:0030-2465
Online Access:Get more information
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Summary:Lyophilized tissues of mice and blood of sheep, infected with either the Kümm, the Welgevonden or the Ball 3 stock of Cowdria ruminantium, remain infective to mice and sheep after storage at 4 degree C for 90 days. Freeze-dried tissues stored at -18 degrees C and -28 degrees C are still infective after 6 months and 2 years, respectively.
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ISSN:0030-2465