Document rr5yddxZDmvD9kvRQ0pxYaKJ

T C - . <_>< I $ K i * ^ * i ngest INDUSTRIAL HEALTH NEWS UTERATURE ABSTRACTS MEDICAL ENGINEERING CHEMICAL TOXICOLOGICAL LEGAL * dvcitioas *ad &d* j- J(AVNoUL A14R,YN,o1.915) 0 r INDUSTRIAL HYGIENE FOUNDATION MOO FIFTH AVENUE *: PITTSBURGH X2. PA. A7/ 'CUr, Cxktnf Hh -(CCLf. shoved evidence of rsinfection tuberculosis in 1}, or O.b per cent. The highest rate, 0.52 per cent, va3 found in Group 3. The rate in Group A vas slightly higher chan in Group C. A total of 5 > 152 induscrlal vorhers shoved evidence of reinfection tuberculosis in 75 tersons, or 2.5 ter cent. The conoarativs races of incidence for che three grouns vere the sane as for the student groups, chough ruch higher. Enphasis va3 placed on the sccio- econonio statue and. Its relationship to the prevalence of tuberculosis ancng those in Group 3. Other abnornalities of the chest vere found in 0.52 ter cent of the students, vith bone ir.volvenent as the or inary finding. Of the industrial vcrhers examined, cardiovascular abnornalities prevailed arcng C .95 ter cent of the nontuberculous. -- Condensed frcn Authors' Sunnary 5o Asbes tcs is : i - Analvs is of Forty rrecrctsied Cases. l.M. Lynch, and Dis. Chest 1-, ?. 071 (i?*o), The authors retort an analysis of bO cases in vhich asbestos is '-"as at necropsy. Cases are divided into ninor, nediun, and advanced v advance of the disease and the prcninence of asbestos is. bodies shoving a direct relation to the duration of exposure. In 1 of H cases of advanced grade, pulmonary tuberculcs is vas the primary cause cf death. Only in cases of recent exposure vas recent fibrosis found, this providing support for Gardner's belief that fibrosis does not progress indefinitely after cessation of exposure. Presence of asoestosis bodies is not invariable in erperinentaily produced asoestosis, but is more typical of human asoestosis. lung danage occurs before the formation of asoestosis bodies, vhich may represent an attempt 07 the tissues to segregate the particles; they persist in the lung indefinitely. Pleural fibrosis is an outstanding, though not invariable, feature of asoestosis: the reason for this is not clear as the particles dc not reach the tleura. The occurrence in asoestosis of nodular _fihrcsis of silicotic type, vhich ring others have produced experimen tally, vas confirmed in 3 cases. Carcinoma of the lung occurred in three out of IQ cases--an incidence of 7.5 per cent, vhich i3 seven times greater than general incidence-ail in cases of nediun--or advanced grade --asbes - tosis. This figure is in accordance vith the experience'of other vcrxers, and calls for further study. Tuberculosis occurred in 3 lx cases, but it is suggested that this incidence i3 not significant; this is net quite con vincing. Gardner stated that experimental asoestosis dees not predispose to tuberculcs is. (Unfortunately the occupational histories of these cases are net c ant lete ). -- Brit. 1. Ir.d. Med 57 Antihistamines in the Treatment of the Common Cold. A Preliminary Penort. JAW. Middleton end jTa. Rider. Dis. o: Chest. lt>, G79-o^*~Tlec. 19^9). (l) Sixty-three cases of the ccsmon cold vere treated vith antihista mines and 29 vith placebos as a control .(2) There appeared to be a definite