Further note on some additional points in connection with chloroformed calf vaccine / by Alan B. Green, ... . Communicated by W.H. Power.

  • Green, Alan Baldrey.
Date:
[1904]
Catalogue details

Licence: In copyright

Credit: Further note on some additional points in connection with chloroformed calf vaccine / by Alan B. Green, ... . Communicated by W.H. Power. Source: Wellcome Collection.

Provider: This material has been provided by London School of Hygiene & Tropical Medicine Library & Archives Service. The original may be consulted at London School of Hygiene & Tropical Medicine Library & Archives Service.

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    [From the Proceedings of the Royal Society, Vol. 73. j Further Note on some Additional Points in Connection with Chloroformed Calf Vaccine. By Alan B. Geeen, M.A., M.D. (Cantab.). Communicated by Dr. W. H.^ower, C.B.' F.IiS. Eeceived April 19,—Bead May 5, 1904. (From the G-overnment Lymph Laboratories.) Since April, 1903, the date of ray preliminary note* on this .subject the preparation of calf vaccine by the chloroform process has been carried on in at these laboratories and a large number of vaccines have now been treated by this method. These lymphs have been freed from their non-sporebearing extraneous bacteria within a period ranging between 1 and 8 hours after their collection from the calf, and have, subject to the usual tests, been issued for general vaccination purposes about 2 weeks after collection. Their use has resulted in high case and insertion success. The following points in connection with these vaccines have been mvestigated. The Effect of Temj^erature in the EUmmation of Extranems Mkro-mjanim. from Crude Calf Vaccine hy the Chlorofm-m Process. It has been ascertained that the temperature at which vaccine emulsion IS .subjected to the chloroform process determines largi ri rate at which the extraneous bacteria of that emulsion are elim nited This has been shown in two ways. cnunucicea. • • ' Roy. Soo. Proo.,' 1903,