Calf-lymph vaccination.

  • National Vaccine Establishment (Great Britain)
Date:
1881
Catalogue details

Licence: Public Domain Mark

Credit: Calf-lymph vaccination. 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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    NATIONAL VACCINE ESTABLISHMENT./ ' I.. J.' CALF-LYMPH VACCIWATION. The present lymph is seut for the comineucement of a local series of arm-to-arm vaccinations. In using it for this purpose, it is to be remembered— (1) That, as compared loith humanized lymph, calf- lymph is much less easy of removal from the '^points ; (2) That such lymph does not take loith the same degree of certainty as humanized lymph ; (3) That the course of the early vaccinations of a series is not so regular as loith humayiized lymph. Any child chosen for vaccination with the lymph now sent should be between three and five months old, and should be selected for its own good health and for the known good health of its parents. Two large points are needed for the vaccination of a single child. The lymph on them should be moistened for a minute with water, and should then be thoroughly rubbed into each of four or five places prepared on the child's arm or arms. Each of these places should be made by abrasion with a blunt lancet over an area of an eighth of an inch square. In vaccinating subsequent children, lymph should be taken from fully developed vesicles, before the formation of an areola round them. The vaccination of the first child is liable to be retarded, and that of the next few children is fi'equently accelerated; so that it is desirable to inspect the several vacciuifers on other days beside the day-week, in order that the best time for taking lymph may be assured. Calf-lymph for the vaccination of children is best preserved on points ; but if it is desired to establish local series of calf-to-calf vaccinations, lymph in tubes or between glasses is to be preferred. Special application to the National Vaccine Establishment should be made, if lymph stored in either of the latter ways is desired. One or more perfectly healthy calves of four to five months old should be in readiness at the time of making the application. GEORGE BUCHANAN. August, 1881. K 7894. 1000.—7/63. Wt. 5790. K. & S,