Report of the Departmental Committee apointed to inquire as to precautions for preventing danger of infection from anthrax in the manipulation of wool, goat hair, and camel hair.
- Great Britain. Committee on Anthrax.
- Date:
- 1918
Licence: Public Domain Mark
Credit: Report of the Departmental Committee apointed to inquire as to precautions for preventing danger of infection from anthrax in the manipulation of wool, goat hair, and camel hair. Source: Wellcome Collection.
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![The outer deeply-shaded part of the clot consisted of a hard dark brown to black’ leathery substance, while the lightly-shaded central portion was of the usual red colour of unchanged blood.- Immediately on putting the half clot mto ammonia solution 22 hours after the end of drying the liquid became stained deep red. It was impossible to tease out the black outer portion of the clot in the ordinary way, though the central portion was soft enough. The former had to be cut up and resembled tough leather. This clot will be again referred to. Table 9—continued. Proressor DELEPINE’S RESULTS. l bk ton, Guinea Pigs inoculated. | Examination of Lesions. | | + = Anthrax found ; rad a Number of oe ee 3 0 = No Anthrax found ; Colonies growing: 5 | Propor- — = No special examination. on Agar at 37° C. i tion of from sg55th part 5 praeee 1 |Time k Mac ical and Result rs i one TOlokL> on aterla ime Kept, acroscopical an = esult, reated Clot. cs (Sedi- Bader Mode of Heke esi i en ag 2 ment) | Observa- Death, Aitek cc Sent eee eae b from tion. | at 4 gues | Zi treated Toaaill|. GOCE SE adaile OF Gate Al Clot ~ Spleen) of ~ _|Spleen| of other Or- injected. |; penn oH Heart, esion : Heart. ax. ganisms. (19); (20). @l) (22) (23). 24) | 5) | @6)] GD] GS) (29) (30), (81) 4 8 days Died ++} ae eee a8 ale Anthrax, sub- os ae 96 | werner SPA: tee chronic, general. | & 40 hrs. Died + + she bec de + |..-+.|., Anthrax, acute, ay Ia) general, 3 67 days. Died reece 0 0 0 0 No anthrax — | — 97 J 4 40 hrs. Died Fee 0 + p We amtorax. siti-acwue, |) 6-704). = L | : | local. 98 4 67 days Died Gert 0 0 0 0 No anthrax —); — ; { 4 67 days Killed Ore 0 .}:0 0 0 No anthrax be adl t e 99 { 3 | 21 days, Died Oe 2 0 0 0 0 No anthrax ae ah ee ‘ 4 66days Killed 0 0 0 0 0 0 No anthrax pan eye a4 { 4 | 65 days) Kilied 18 0 0 | 6 6 Of GOT O No anthrax meets WAREE i 4 | 67 days; Killed |» 0 | 0 0 0 0 0 No anthrax — jo a aomdays) | Dieds of +- uleriah =o HL. es + ,|Anthrax,-sub-acute,|-.-- | — 101 \ ; | general. | 4 ddays Died +), 4+ + + + -+~| Anthrax, sub-acute,; — | — | general. * ¥) Sdaysi Died jo 4 jo 4 + +) + | + |Anthrax,sub-acute,,; — — 1 09 { | general. # | Sdays| Died | 4-5 + ze ae = - | Anthrax, sub-aeute,} — | — oie | general. 103 { 4 | 52 days,....Died .-..-0,. |- 0 0 Ove oO 0 No anthrax ee Ws 2 | 18 days Died seeie cO 0 0 0 0 0 No anthrax Deeg bsg 104 a a i Pi ota nag oe ed ie ee ere hy Gaeta — as aie 105 - * 1 Raa ae Sat jn 8 GSN a — Be a ae 106 — — — | —- ee | —;}; —|]| —} —}] — =a — —- a RS a a a a a aa Da el waa aac] 2. me Meee a eT se (EL pee | as Coles | . ! At first it was thought that the blood was in some way different from blood used for making previous clots, but this view was untenable because the same blood had been used for making all the clots of the Ei series, and they did not all behave in the same manner. Thus, the clots used in Experiments 98 and 100 were not different in size, thickness or outward characteristics from that used in Experiment 96, yet they were both almost completely disintegrated by the preliminary treatment. In all the remaining experiments of Group 9 the clots were only partly disintegrated. In most a considerable part of the clot disappeared, leaving from one to three hard masses of blood over a quarter of an inch in thickness. A few clots behaved similarly to that used in Experiment 96, though none was quite so refractory. This difference in behaviour pointed to a cause which was not common to all or which was more effective in some than in others. The clots of Series EK had been strung on wire in groups of five, each group being placed in a separate desiccator. The desiccators were then placed in front of the laboratory fire with a view to hastening the drying, which at that time of.the year (Christmas) | was slow. ‘lhe clot used in Experiment 96 was the end clot on the wire, and as it was intended to use this lot of clots first, the desiccator containing that group was placed nearest the fire. Parts of the interior clots were shielded from direct heat by wool-and other clots, and, having regard to a similar experience of Professor Delépine’s and to his experiments (see his report), there can be very little doubt that parts of the clots became hardened and made insoluble by the heat. They were thus enabled to resist disintegration by the preliminary process in disinfection. It is not to be supposed that we came to this conclusion at once. The cause was suspected, but- many experiments were made before the above-mentioned explanation was accepted. A 31335 F](https://iiif.wellcomecollection.org/image/b32178049_0041.jp2/full/800%2C/0/default.jpg)
