Brief directions for the use and keeping of heifer-transmitted cowpox virus.

  • Henry A. Martin & Son.
Date:
[1880?]
Catalogue details

Licence: Public Domain Mark

Credit: Brief directions for the use and keeping of heifer-transmitted cowpox virus. 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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    * BRIEF DIRECTIONS 1 For the Use and Keeping of Heifor-transmittcd cow POX VIRUS B AnuiaIj Vaccine Virus has some peculiarities which involve a little greater cnre to insure success in its use than is necessary with lymph from the arm. It is earnestly urged, therefore, that our correspondents do read this entire circular, but if this should bo inconsistent with their leisure or inclination, it is still HOPED that they will read and ponder the explicit directions numbered one to seven, and follow the practice they indicate. 1. Vaccinate by making, with the ivory lancet point or a clean lancet, two groups of scratches or very slight incisions, so slight that little or no blood shall exude, but rather serum tinged with blood. The points are so prepared as to exactly resemble a lancet, and the perfection of vaccination is to use the point itself as the vaccinating instrument, thus avoiding all danger from foul lancets. 2. Be sure that the albumen, in which the Virus is held, on both sides of the point, is thorowjhhj dissolved before insertion. 3. AVipo from the surface of the little scratches or incisions any fliui of blood or serum, which may have exuded, just before application of dissolved lymph. 4. Apply the dissolved lymph to and into the little incisions, pressing it into them repeatedly with the flat of the point.—To do this very thoroughly, will not take thirty seconds, the failure to do it often results in failure of vaccination, and blame to the virus. 5. Never, under any circumstances, make more than one vaccination with one point. If a lancet is used it should be kept clean and bright, and dipped in hot (not warm merely) water and wiped dry and clean after every vaccination. 0. The blood may be allowed to dry i/i situ, but this is not necessary, it is more elegant and cleanly to wipe it oft with a moLst napkin, any time after one minute after the operation is completed. I PRESERVATION OF VIRUS. 7. Keep it dark, drv and cooi^, no matter how cold, or indeed how many degrees below zero, but avoid great heat even when dry or any degree of heat and moi-iiturc. Avoid vaccinating machines, and the many traps which in this, as in other dojpart- ments of Medicine, seek to substitute machinery and apparatus for brain.s, learning and skill.