Dairy Workers Research Articles

The Prevalence of Rheumatoid Arthritis in Occupational Groups

Distributed on 66 large occupational groups the prevalence of classical, definite, probable and possible RA (according to ARA criteria) was determined in the general population. A total of 39, 418 persons were investigated in a sample survey of five geographical areas in Sweden-this being the total populations over the age of seven. The distance between the different areas is 150-650 km. Occupational groups with high prevalence of RA were: Males: Food and dairy workers, butchers, fishermen, agricultural workers, building foremen, machine and engine repairers, bakers, foremen, washers and ironers, textile workers, industry and factory workers. Females: Cleaning workers, doctors and nurses, nurse assistants, textile workers, shop assistants, bank, post and telegraph personnel and wives. From the present series it seems as if outdoor occupations with relatively heavy work have the highest prevalence of RA. Environmental factors apparently account for differences in prevalences of RA.

The Prevalence of Rheumatoid Arthritis in Occupational Groups

Distributed on 66 large occupational groups the prevalence of classical, definite, probable and possible RA (according to ARA criteria) was determined in the general population. A total of 39, 418 persons were investigated in a sample survey of five geographical areas in Sweden—this being the total populations over the age of seven. The distance between the different areas is 150—650 km. Occupational groups with high prevalence of RA were: Males: Food and dairy workers, butchers, fishermen, agricultural workers, building foremen, machine and engine repairers, bakers, foremen, washers and ironers, textile workers, industry and factory workers. Females: Cleaning workers, doctors and nurses, nurse assistants, textile workers, shop assistants, bank, post and telegraph personnel and wives.From the present series it seems as if outdoor occupations with relatively heavy work have the highest prevalence of RA. Environmental factors apparently account for differences in prevalences of RA.

The Social Organization of Knowledge and Practice: A Symposium: Introduction: Situationally Specific Practice

In a discussion of closely related research, the authors of this symposium examine evidence for the situationally specific character of problem‐solving practices. They document situational variation in what constitutes a problem, in the procedures used, in the distribution of knowledge among people and settings, and in success at problemsolving by the same people in different contexts. These findings provoke speculation about relations among social contexts, knowledge, and activity, and about relations between school‐learned problemsolving techniques and those learned and used in other settings. Arithmetic practices observed in Liberian classrooms, among grocery shoppers and novice dieters, and in product assembly tasks among commercial dairy workers provide the empirical basis for the discussion.

Leptospirosis in man, Israel, 1970-1979.

In 1970-1979, the incidence of human leptospirosis in Israel was 0.7 per 100,000 population. The majority of the cases (62%) occurred in northeastern Israel (Upper Galilee). Prior to 1973 the main infecting serotypes were grippotyphosa (41%) and Hebdomadis szwajizak (31%). Following the first outbreak of Hebdomadis hardjo infection in 1973, a change occurred in the epidemiologic pattern of human leptospirosis, with hardjo becoming the most common serotype (59%). Hardjo infection outbreaks were sporadic and localized to dairy farms. The peak of incidence was during the summer months, June-September. All the patients with hardjo were dairy workers. The illness was relatively mild and mostly unicteric. Cattle seemed to be the principal source of hardjo infection for man.

The Prevalence of Rheumatoid Arthritis in Occupational Groups

SummaryDistributed on 66 large occupational groups the prevalence of classical, definite, probable and possible RA (according to ARA criteria) was determined in the general population. A total of 39,418 persons were investigated in a sample survey of five geographical areas in Sweden — this being the total populations over the age of seven. The distance between the different areas is 150—650 km. Occupational groups with high prevalence of RA were: Males: Food and dairy workers, butchers, fishermen, agricultural workers, building foremen, machine and engine repairers, bakers, foremen, washers and ironers, textile workers, industry and factory workers. Females: Cleaning workers, doctors and nurses, nurse assistants, textile workers, shop assistants, bank, post and telegraph personnel and wives.From the present series it seems as if outdoor occupations with relatively heavy work have the highest prevalence of RA. Environmental factors apparently account for differences in prevalences of RA.

Staphylococci in Food and Food Intoxication A Review and an Appraisal of Phage Typing Results

SUMMARYA review has been made of published information on the phage groups and types of staphylococci concerned in food‐borne intoxication. It revealed that the majority belonged to phage group III with the types 6 and 47, either alone or, with others, being the most common. In Great Britain the yearly incidence of food‐borne intoxication, from 1950 to 1962, due to strains of phage group III ranged from 64.5 to 94.7%.In food handlers incriminated in outbreaks the nose was the most common focus of infection, and the hand came next.Meat and milk were the foods most commonly incriminated. Group III phages lysed 64.3% of strains found in meat and 58.1% of those in milk. Group IV phage lysed nine times as many milk‐borne as meat‐borne strains, which were also quite common in milk taken direct from cows, with and without mastitis or abnormal secretion.The meager data on staphylococcal contamination of “wholesome” food, meat, milk and fish, were tabulated. A high proportion of these strains were untypable, but one‐fourth to one‐third of the strains were lysed by phages of Group III.The results of phage typing of staphylococci from milk, dairy workers, market milk and dairy products were summarized. Phages obtained from strains of human and animal origin have been used for typing purposes. Of the phages in the “international set” obtained from staphylococci of human origin, 42D, Group IV, lysed more strains than any other phage. A set of phages of bovine origin has not yet been internationally recognized.About two‐thirds of the strains obtained from bovine mastitis but three‐fourths of strains front normal milk were lysed by the typing phages employed. Group III phages lysed two‐and‐one‐half times as many strains from normal as from mastitis secretion.Cheese, butter, butter‐milk, skim milk, cream, ice cream, kefir, and dried and condensed milk have yielded staphylococci lysed mainly by phages of Groups III and IV.Dairy workers, veterinary surgeons, and farmers have yielded strains similarly lysed. Some of the people in these groups as well as the animals they tended have suffered clinical disease processes, due to strains with identical phage reactions.Phage‐typable strains have been found in the noses of cattle, in dogs, pigs and chickens; their human attendants have, in some cases, carried identical strains.The proportion of staphylococci, lysed by the 52/52A/80/81 complex of phages has shown a twofold increase in hospitalized human patients and a two‐and‐one‐half increase in animals in the last few years. Staphylococci lysed by this complex are regarded as particularly invasive in and pathogenie for man.No comparison has appeared on the frequency distribution of staphylococci among the phage groups from food‐borne intoxication and food handlers. A comparison was therefore made of such reported strains from: i) food causing intoxication; ii) the nose; iii) the feces; and iv) superficial lesions of apparently healthy persons. The main features were: a) the low proportion of strains lysed by phages of Group 111 in ii, iii, and iv; b) the low proportion of untypable strains, especially in i.Systematic phage typing of staphylococci from wholesome food, food incriminated in intoxication outbreaks, hospital patients and the general population in defined geographical areas is recommended. Sites such as the nose, hands, feces, and perineum of healthy people and disease processes in hospitalized patients should be searched for staphylococci, which then should be typed by the use of a standard technique with the aid of the international set of phages from strains of human origin, augmented, where necessary, by phages from strains of animal origin.In addition to the international set of “human” phages, it would be useful to establish and use an international set of phages of animal, especially bovine, origin.Phage typing cannot be used to determine whether a given staphylococcus has produced or can be induced to produce enterotoxin; but is an excellent means of assisting in determining whether staphylococci from victims of food‐borne intoxication, suspected food and suspected food handlers are related.

Tuberculosis in Dairy Workers

Tuberculosis in Dairy Workers

CHICAGO DERMATOLOGICAL SOCIETY

<b>Migratory Erythema: Erythema Annulare Centrifugum?</b>Presented byDr. Adolph Rostenberg, Jr.and (by invitation)Dr. Betsy B. Brennan. A 50-year-old white married man, a dairy worker, since January, 1955, has had progressive dusky erythema and scaling of the right foot, followed in a few months by progressive pain and weakness of the right foot and leg. For four months there has been a continuous eruption on the right leg and thigh of large, ring-like lesions. The border of the lesions consists of fine erythematous papules leaving a clear center which shows slight scaling and pigmentation. Some lesions have coalesced, producing an arciform border. The rings, according to him, change in position and size. The right foot shows uninterrupted dusky erythema from the ankle downward, over which there is a dry scale. The nails are thickened, ridged, and opaque. Scrapings from the nails and skin contained no fungus. This

INVESTIGAÇÕES SÔBRE A FEBRE Q EM SÃO PAULO

The results of investigations concerning Q fever in cattle ranchers, dairy workers and cattle of the state of São Paulo are here reported. The serologic data here presented confirm and amplify those previously reported. 1) By using the specific complement fixation test, sera of 71 cattle ranchers or dairy workers, belonging to 8 different establishments, were studied. Of these 71 serums, 65 were negative, I anticomplementary and 5 positive: two at a titeroflin 8 and three at a ti ter o f I in 16. 2) Tests of a second serum from 20 dairy workers showed no significant difference from the first examination when performed forty five days later. A similar result was obtained in the study of the sera of two ranchmen, when examined a second time after an interval of about nine months. 3) Sera from 581 animais belonging to 9 different herds were studied. Of 171 bovine sera studied , 131 were negative, 16 anticomplementary and 24 positive, 16 at a titer of I in 16, 5 at I in 32, 2 at I in 64 and 1 at 1 in 256. 4) Two heifers from one o f the herds had ser a positive at 1 in 32 and 1 in 64; they showed a drop in titer, about two months later, to 1 in 4 and 1 in 32, respectively. The results of the tests performed with sera from 12 other animais of the same herd, negative in the first bleeding at a titer of 1 in 8, did not show significantly different results about five months later. 5) Attempts to i);olate Coxiella burnetii from two samples of blood, one of milk and one of placenta from bovines belonging to two of the 9 herds, failed. 6) Of 26 sera of recently imported bovines from other countries (Netherlands and Great Britain), 18 were negative, 2 anticomplementary and 6 positive, 5 at a titer of 1 in 16 and 1 at a titer of 1 in 32.

OBSERVATIONS ON THE CHEMICAL DISINFECTION OF AN AUTO‐RECORDER MILKING MACHINE

Summary:A cleansing routine using chemical sterilization by sodium hypochlorite solution, periodic steaming and fortnightly dismantling was adopted for a 2‐point auto‐recorder milking machine. Milk of good keeping quality was consistently produced when the plant was steamed twice weekly and hypochlorite was used in both the morning and evening cleansing. The consistency and thoroughness of the cleansing methods used and of their application by the dairy workers were considered important factors in the success obtained.

Q FEVER: CASE TREATED WITH STREPTOMYCIN

Case Reports1 June 1948Q FEVER: CASE TREATED WITH STREPTOMYCINLEON ROSOVE, M.D., HAROLD E. WEST, M.D., ALBERT G. BOWER, M.D., F.A.C.P.LEON ROSOVE, M.D.Search for more papers by this author, HAROLD E. WEST, M.D.Search for more papers by this author, ALBERT G. BOWER, M.D., F.A.C.P.Search for more papers by this authorAuthor, Article, and Disclosure Informationhttps://doi.org/10.7326/0003-4819-28-6-1187 SectionsAboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinkedInRedditEmail ExcerptQ fever was described first as a severe influenza-like disease in Queensland, Australia in 1937, where it affected bushmen, abattoir and dairy workers. Evidence from Australia indicates that the tick (Haemaphysalis humorosa) and the bandicoot (Isoodon torosus) constitute important vectors and a host reservoir. Although ticks infected with Rickettsia burneti, the cause of Q fever, have been collected from several northwestern and southwestern states,1 only a few naturally occurring infections have been reported from this country. It now appears that Q fever is more widespread than originally thought.Outbreaks of Q fever were reported during the latter part of World...Bibliography1. COX HR: Rickettsia diaporica and American Q fever, Am. Jr. Trop. Med., 1940, xx, 463-469. CrossrefGoogle Scholar2. ROBBINSGAULDWARNER FCRLFB: Q fever in Mediterranean area: Report of its occurrence in allied troops. II. Epidemiology, Am. Jr. Hyg., 1946, xliv, 23-50. Google Scholar3. . Identification and characteristics of Balkan grippe strain of Rickettsia burneti , Am. Jr. Hyg., 1946, xliv, 110-122. Google Scholar4. CHENEYGEIB GWA: Identification of Q fever in Panama, Am. Jr. Hyg., 1946, xliv, 158-172. Google Scholar5. FEINSTEINYESNERMARKS MRJL: Epidemics of Q fever among troops returning from Italy in spring of 1945. I. Clinical aspects of epidemic at Camp Patrick Henry, Virginia, Am. Jr. Hyg., 1946, xliv, 72-87. Google Scholar6. SPICKNALLHUEBNERFINGERBLOCKER CGRJJAWP: Report of outbreak of Q fever at National Institute of Health. I. Clinical features, Ann. Int. Med., 1947, xxvii, 28-40. Google Scholar7. HUEBNER RJ: Report of outbreak of Q fever at National Institute of Health. II. Epidemiological features, Am. Jr. Pub. Health, 1947, xxxvii, 431-440. CrossrefGoogle Scholar8. TOPPINGSHEPARDIRONS NHCCJV: Q fever in the United States. I. Epidemiologic studies of outbreak among stock handlers and slaughterhouse workers, Jr. Am. Med. Assoc., 1947, cxxxiii, 813-815. CrossrefGoogle Scholar9. IRONSHOOPER JVJM: Q fever in the United States. II. Clinical data on an outbreak among stock handlers and slaughterhouse workers, Jr. Am. Med. Assoc., 1947, cxxxiii, 815-818. CrossrefGoogle Scholar10. IRONSMURPHYWOLFE JVJNDM: Q fever in the United States. III. Serologic observations in an outbreak among stock handlers and slaughterhouse workers, Jr. Am. Med. Assoc., 1947, cxxxiii, 819-820. CrossrefGoogle Scholar11. COXTESARIRONS HRWCJV: Q fever in the United States. IV. Isolation and identification of rickettsias in an outbreak among stock handlers and slaughterhouse workers, Jr. Am. Med. Assoc., 1947, cxxxiii, 820-821. CrossrefGoogle Scholar12. Editorial: Q Fever in the United States, New Eng. Jr. Med., 1947, ccxxxvii, 290-292. Google Scholar13. Department of Health, City of Los Angeles. Weekly report, June 14, 1947. Google Scholar14. HUEBNERHOTTLE RJG: Unpublished data, National Institute of Health. Google Scholar This content is PDF only. To continue reading please click on the PDF icon. Author, Article, and Disclosure InformationAffiliations: *Received for publication December 2, 1947.From the University of Southern California School of Medicine and the Communicable Disease Unit of the Los Angeles County General Hospital. PreviousarticleNextarticle Advertisement FiguresReferencesRelatedDetails Metrics Cited byDas Q-FieberTREATMENT OF Q FEVER WITH ANTIBIOTICS 1 June 1948Volume 28, Issue 6Page: 1187-1192KeywordsHospital medicineQ feverRickettsiaRocky Mountain spotted feverStreptomycinTicks ePublished: 1 December 2008 Issue Published: 1 June 1948 PDF downloadLoading ...