Show i a 01 TR tbt isnow assured tuberculin used in test aias has been reduced to t absolute purity dijt atlantic alty two great scientific advances of far reaching c couse in the diagnosis and treat meni of tuberculosis were dis disclosed closed in reports rendered to the national tuberculosis association clation in annual session hart hp rt tuberculin the sub i stance used tn in the test tor for dete detecting acting in human beings as well as an cattle has been reduced to abao luta lucci purity something heretofore sever never achieved so that it can be supplied wholly free from other sub stances which have affected the accuracy curcy atif t these tests ln in the past the details of this process were described by dr esmond R fong ong and dr florence B selbert seibert of the university of chicago the second research consists of the production 0 o a wholly new mechanism tor for testing the individual 1 for the pres ance caf tuberculosis which Is expected to ta render the detection of this dds easo possible within three or four days of infection instead of an average ageton of two months afterward as Is at present the ahe case this was disclosed in reports submitted by bv drs floreace it sabin 0 A donn ond CM 0 B forkner of the rockefeller institute for medical research bentli these scientific groups conducted thel their in operation cooperation co wim the medical research committee of the Na national tuberculosis association of billeb dr william charles white of Wai washington hington Is chairman makes diagnosis exact of tuberculosis will be comry comfy much more exact by reason of the perfection of tuberculin to crystalline line purity according to scientific au an in attendance at the meeting particularly in the examination of children suspected of infection will the naw new tuberculin be of great value rahl e for heretofore it tins has not been vertain certain in the individual case timi eliat it a positive reaction was not batise caused d by bone one of the various imp impurities were known to exist tn in the tuberculin used the skin test has always probably been complicated by bv ts in the test fluid other than those thole which Ind indicate ledie the dis disease oase it will also affect directly the testing of cattle and reduce the number of ant mala maid which ch are slaughtered because they react pai positively y to tuberculin and yet show ghow no signs of tuberculosis research work Is to le be continued contina by doctors long and selbert of the university vers ity of chicago to discover to whit what extent the avlan avian type ot of the disease in chickens and the bovine type type in cattle nifty may be the cause of the haman al disease sense authorities state that li he dwork work already done in eliminating foreign elements from tuberculin will affect tho diagnosis gofoth of etli er ei bacterial diseases in a similar t nin inn rendering methods much more accurate and dependable alic he new test devised tor for the earlier diagnosis i of culoso by members of the rockefeller institute util laen a small quantity of the blood of tha patient the red corpuscles corpus cles are rei removed coved and the remaining serum ril di and placed place in a test tubs tube chih con ta ining one of the fatty antty fractions of the tuberculosis germ known as aa it if the patient has ha s tuberculosis there will be a precipitate but if the disease Is not present nothing at all will occur this new test will also be of use in distinguishing between cases of meningitis which are tuberculosis and those which are not something which science has hereto fore been bean unable to do early to in the disease and accurately result of long study in commenting on these two achievements dr kendall emerson managing director of the national tuberculosis association stated shifted that these definite and significant results are the reward of seven years work by the scientists engaged in various related realms of research this particular branch of research has been directed under a system of counsel lors drawn from leading scientific men of the country prom from time to time these men have held meetings listened to reports of progress by different workers in allied fields and as a jury of scientific peers have assisted the plan of attack on problems advising lines of effort to be pursued the chemical jury of ti the ae research committee which established the base line for these studies includes dr paul A lewis rockefeller institute dr allen alien K krause johns hopkins hospital dr esmond R n long university of chicago drs dra eugene eugene L ople H R M and charles J hatfield henry phipps institute sti tute prof treat D B johnson yale university prot prof hans harvard medical school prof john 3 abel johns hopkins medical school prof A N richards university of pennsylvania dr linsly it williams national tuberculosis association dr william charles white washrag Wash ilig ton |