Researches on Tuberculosis: The Weber-Parkes Prize Essay |
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abundant Agar-peptone Animal used Seat aqueous vapour ascertained bacillus of tubercle body c.cm Cellar in pure Cent Chapter chlorinated chlorinated lime condensed fluids creasote Date Animal Date of inoculation days drying Degree of tuberculosis disinfection Ditto dwellings especially essay experiments exposed feet fever fresh air gasometer given glycerine growth guaiacol guinea-pigs Healthy breath Impure cellar incubator infection influence inhalations inoculation Quantity Inquiry iodoform lungs microbe milk observations obtained organic fluids oxygen ozone ozonised oxygen patients peptone Peritoneum persons phagocytes phenacetin Phthisical breath phthisis rate pleurisy present pure cultivations pure filter-paper pure oxygen pure porous Remarks researches Rompler sanatoria sanitary Seat of inoculation slow drying soil specimens sterilised streptococcus subsoil sufficient sunlight susceptible TABLE tion treatment tuber tubercle bacillus tubercular disease tuberculin tuberculosis tuberculous dust tuberculous matter tuberculous sputum tubes ventilation virulence Wilson Fox X XX XX XX XX XX XX XXX XXX
Popular passages
Page 44 - No doubt the largest part of the tuberculosis which man obtains through his food is by means of milk containing tuberculous matter.
Page 20 - But, in addition to the above mentioned researches, it seemed desirable that an attempt should be made to ascertain what part was played respectively by the several forms of organic impurity that are present in insanitary dwellings. It was determined, therefore, to collect the aqueous vapours arising from the ground, or from human bodies, and to submit these products to the test of trying whether they would serve as cultivating media for the bacillus of tubercle. By means of a simple...
Page 26 - Accordingly, four tubes with simple filter-paper as the supporting medium, and condensed fluid-, from the breath of a healthy person, and from that of a phthisical patient, as nutrient fluids, were inoculated, and no glycerine was added. In these tubes the same cultivation was used as in the previous experiments. Shortly afterwards, two similar tubes with fluid from healthy breath alone, but with 5 per cent, of glycerine, were sown with the same cultivation, and were left at the ordinary temperature...
Page 31 - The bearing of these researches upon the subject of the prophylaxis against tuberculosis seems to be of some importance. They prove that any one of the various organically charged vapours, whether coming from healthy or from diseased lungs, from the air of cellars, or from comparatively pure ground, forms an excellent cultivating medium for the bacillus of tubercle when kept away from the disinfecting influence of air and light. This power of promoting its growth is particularly manifest when the...
Page 20 - ... places, and the danger of infection in others. They show that where tuberculous sputum is exposed to sufficient light and air, to deprive it of virulence before it can be dried up and powdered into dust, no danger of infection need be dreaded. It would appear further, from this research and others, that it is only when there is sufficient organic material in the air, derived from impure ground air, or from the reek of human bodies, that the tubercle bacillus can retain its existence and its virulent...
Page 44 - Tuberculous matter is but seldom found in the meat substance of the carcass ; it is principally found in the organs, membranes and glands. There is reason to believe that tuberculous matter, when present in meat sold to the public, is more commonly due to the contamination of the surface of the meat with material derived from other diseased parts than to disease of the meat itself.
Page 20 - That even in the dark, although the action is retarded, fresh air has still some disinfecting influence ; and (3) That in the absence of air. or in confined air, the bacillus retains its power for long periods of time. These observations afforded an explanation of the immunity of certain places, and the danger of infection in others. They show that where tuberculous sputum is exposed to sufficient light and air, to deprive it of virulence before it can be dried up and powdered into dust, no danger...
Page 27 - In other words, it was proved that [jure filter-paper, moistened with these condensed fluids, alone would suffice to nourish and promote the growth of the bacillus, and, further, that this growth would take place at ordinary temperatures. It may hence be concluded that when this organic fluid is present in ordinary dwellings, the bacillus may grow at the temperature of living rooms as well as at the temperature of 35"
Page 5 - No house is ever built upon freshly-made ground, or on pits that have been filled up with refuse. The locality is well sewered, and has a plentiful supply of good water. Moreover, the inhabitants are for the most part wellto-do people. Out of 2,559 of population at the last census, only about 500 are poor, and live on the low-lying clay lands that surround the sandy downs upon which Bowdon is built. The remainder dwell in well-built, salubrious houses; they are well fed, and comfortable in their...