| chromosome analysis on 930 consecutive newborn children using quinacrine fluorescent banding technique. | chromosome analysing using quinacrine fluorescence was performed on 930 consecutive newborn infants. the total incidence of major chromosome aberrations including numerical changes of the sex chromosomes, and structural changes of autosomes, was 0.54%. incidence of xyy (0.4%) and xxy (0.2%) were relatively higher as compared to other studies. about 0.75% of the newborn infants were found to have a variable bright fluorescent band located on the proximal area of the short arm (p11) rather than on ... | 1976 | 60278 |
| the occurrence of candida albicans in lake ontario bathing beaches. | there are inherent weaknesses associated with currently used bacterial fecal pollution indicator systems. fecal pollution indicator data would be more meaningful if supplemented with information relating to the occurrence of pathogens in recreational water. through surveys of four bathing beaches on lake ontario, it was established that the opportunistically pathogenic yeast candida albicans occurs in near shore waters. the beaches surveyed could be differentiated on the basis of bacterial fecal ... | 1979 | 120220 |
| an immunoprecipitin study of the incidence of influenza a antibodies in animal sera in the ottawa area. | a survey of over 600 'normal' sera from 14 animal species by immunoprecipitin tests in cellulose acetate using viron antigens revealed a high incidence of precipitating activity against a broad range of influenza a virus strains, particularly a2hhong kong/1/68 and /pr8. however, serum treatments trypsin-heat-periodate, naio4, v. cholerae receptor-destroying enzyme (rde), or kaolin eliminated most precipitating activity, which suggests that it was due to "non-specific" inhibitors of influenze vir ... | 1975 | 167931 |
| personalized care assures patients' rights. | | 1975 | 238881 |
| the prevalence and epidemiology of toxoplasmosis in ontario. | the results of testing 7060 human serum specimens obtained in the province of ontario, canada, were analysed for the presence of antibodies to toxoplasma gondii. of these samples 38% were serologically positive at a titre of 1/16 or greater. the age-specific rates climbed from 2.7% in infants between 6 months and 1 year of age, to about 50% in individuals aged 25 years or over. variations in prevalence were noted between different areas within the province and evidence is put forward to show tha ... | 1977 | 265346 |
| antimicrobial susceptibility of salmonella isolates from the broiler chicken industry in ontario. | antibacterial drug resistance among 219 salmonella isolates recovered during 1974 from poultry and poultry environments at the various production stages of broiler chickens in three integrated ontario companies are recorded. all isolates were susceptible to ampicillin, trimethroprim-sulfamethoxazole complex, furazolidone, cephaloridine and amoxicillin. a relative increase in resistance to tetracycline and streptomycin with an accompanying decrease in resistance to triple sulfa compound was recor ... | 1977 | 318909 |
| antimicrobial resistance and resistance plasmids in salmonella from ontario, canada. | collections of 589 human and 204 animal strains of salmonella isolated in ontario during the summer of1974 were examined for susceptibility to 12 antimicrobial agents. many isolates were found to be resistant to both chloramphenicol (12.4% of the human and 38.2% of the animal sample) and ampicillin. the chloramphenicol resistance almost always occurred in strains which were also resistant to ampicillin and was usually due to a self-transmissible plasmid with a resistance pattern of cmkmsmtc (chl ... | 1977 | 332297 |
| familial urinary tract anomalies: association with the major histocompatibility complex in man. | histocompatibility typing of a family with 15 members and a history of ureteropelvic junction stenosis and 4 families with 23 members and a history of vesicoureteral reflux revealed that these anomalies of the urinary tract may be hereditary and segregate with histocompatibility haplotype within a family. thus, a close linkage of childhood reflux and ureteral stenosis with that of the major histocompatibility complex of man is suggested. if confirmed by further family studies it will place the g ... | 1979 | 423332 |
| human facial temperatures in natural and laboratory cold. | asian, european, and american indian men were subjected to craniofacial cooling to determine relative ranking and temperature curves for various facial skin sites. moving and still air 0 degrees c to -35 degrees c in both laboratory and subarctic outdoor settings were used. the objective was to examine resistance to facial frostbite. facial temperatures stabilize well above freezing even under quite cold conditions and this conclusion is congruent with low incidences of facial frostbite. racial ... | 1979 | 454321 |
| canadian experience with yersinia enterocolitica (1966--1977). | data pertaining to 1,219 cultures of yersinia enterocolitica isolated in canada are summarized. of the 977 cultures isolated from humans, y. enterocolitica serotype 0:3, biotype 4, phage type ixb was the most predominant type in ontario, quebec and the four eastern provinces. in the western provinces the predominant strains were indol-positive, serotypes 0:8; 5,27 and 4,32. most of the 242 cultures of nonhuman origin, except those isolated from swine and a few isolated from wild animals, were in ... | 1979 | 535372 |
| human tick infestations in ontario: findings at the toronto public health laboratory, 1967-1977. | | 1977 | 603862 |
| electric kettles as a source of human lead exposure. | five hundred and seventy-four households in ottawa were surveyed to evaluate water boiled in electric kettles as a source of lead exposure. samples of boiled water exceeded the world health organization mandatory limit for drinking water (50 microgram/l) in 42.5% of the households. excessive lead concentrations were observed in 62.8% of water samples from kettles more than 5 years old. multiple regression analysis indicated that age, sex, and cigarette smoking habits, but not lead concentration ... | 1978 | 646460 |
| influenza in a nursing home. | | 1978 | 647540 |
| human blood cholinesterase activity--holland marsh, ontario, 1976. | | 1978 | 667390 |
| isolation of yersinia enterocolitica from surface and well waters in ontario. | yersinia enterocolitica was isolated from forty-three surface- and well-water samples and one municipal supply. in many cases these samples were negative for coliform bacteria. after incubation of membrane filters on m-endo agar les at 35 degrees c for total coliform analysis, filters were held an additional 24 h at room temperature. this method was more productive for isolation of waterborne types of y. enterocolitica than was cold enrichment in buffer alone or in combination with modified rapp ... | 1978 | 709433 |
| gonorrhea in homosexual men. | extragenital gonorrhea was seen in 65% of 54 cases of gonorrhea in 43 homosexual men attending a venereal diseases clinic between 1974 and 1977; in 21 cases the infection was extragenital only. this type of gonorrhea was often asymptomatic and was associated with a high rate of failure of initial treatment in 6 of the 50 cases in which the patient returned for follow-up assessment, and in 5 of the 6 the persistent infection was extragenital. syphillis was seen concomitantly or had previously occ ... | 1978 | 709473 |
| physician contributions to nonmedical science: davidson black, our peking man. | | 1976 | 793707 |
| organochlorine residues in human adipose tissue and milk from ontario residents, 1969-- 1974. | | 1977 | 849578 |
| crowding and human reproduction. | studies of crowding in lower animals repeatedly demonstrate that compressed living conditions depress the ability of the species to reproduce. in a sample of 470 urban toronto women we examined the effect of neighborhood and household crowding on the probability of a pregnancy and on the probability that any given product of the pregnancy will not survive until one year of age. crowding did not influence fertility nor fetal and infant survival within the range of crowding found in this sample. ... | 1976 | 958631 |
| marfan syndrome with coronary artery lesions in a north american indian. | marfan syndrome has not been well documented in north american indians. a 19-year old ojibwa man had evidence of this syndrome -- specifically, tall stature, long, thin extremities (particularly, fingers and toes), increased urinary excretion of hydroxyproline, aortic aneurysm, aortic regurgitation and pathologic evidence of aortic rupture and alastic tissue fragmentation. intimal hyperplasia was present in the extramural coronary arteries, while the intramural arteries, usually thought to be in ... | 1976 | 974953 |
| fatal human infection with mesocercariae of the trematode alaria americana. | a fatal human infection with mesocercafiae of alaria americana is described. several thousand mesocercariae were estimated to be present in the peritoneal cavity, bronchial aspirate, brain, heart, kidney, liver, lungs, lymph nodes, pancreas, retroperitoneal adipose tissue, spinal cord, spleen, and stomach. nine days from the onset of symptoms death resulted from asphyxiation due to extensive pulmonary hemorrhage probably caused by immun-mediated mechanisms. circumstances suggest the victim proba ... | 1976 | 1008125 |
| the ombudsman in mental health: lakeshore's experience. | | 1976 | 1027535 |
| alan brown, the man. | | 1975 | 1098761 |
| autopsy data and their total evaluation. | the role of the autopsy is discussed in the study of the etiology of the current major causes of death (cardiovascular and neoplastic diseases) in developed countries. evidence is accumulating for the importance of environmental factors in the etiology of these diseases. the study of regional differences in occurrence is described as a method of identifying specific factors. maps are shown of mortality rates for all causes of death in ontario counties for males aged 65-74 and 95+ during 1964-68. ... | 1975 | 1109383 |
| comparative study of ddt and its derivatives in human blood samples in norfolk county and holland marsh, ontario. | | 1975 | 1131452 |
| distribution of organochlorine pesticides in an agricultural environment, holland marsh, ontario--1970-72. | analaysis of organochlorine pesticides in soil, fish, and human blood samples from holland marsh, ontario, indicates that although total ddt is present in detectable amounts, it does not constitute a hazard to human health and longevity. among soils tested, residues were highest in surface samples. ddt levels in human blood samples were similar to those in u.s. and british studies. | 1975 | 1181548 |
| the human hemoglobin variants in canada. | this report summarizes the results of a search for abnormal hemoglobin variants by use of a filter paper electrophoresis technique on 228,300 blood samples obtained from various parts of four canadian provinces. abnormal variants were found in 438 samples and were of 27 different varieties, including six new ones. in addition, the characteristics of beta-thalassemia were found in 147 samples. the types of variant found, and their geographical and ethnic origin are presented. | 1975 | 1201625 |
| human aural myiasis: a case in ontario, canada, and a partial review. | | 1976 | 1255358 |
| sociocultural variation in sick role behavioural expectations. | | 1976 | 1265488 |
| prevalence of bloodborne infective agents among people admitted to a canadian hospital. | to determine the prevalence rates of hepatitis b surface antigen (hbsag) and antibodies to the human immunodeficiency virus (anti-hiv) and the hepatitis c virus (anti-hcv) among people admitted to an urban canadian hospital. | 1992 | 1313326 |
| possible influence of measles virus infection of cynomolgus monkeys on the outcome of the neurovirulence test for oral poliovirus vaccine. | macaque monkeys are susceptible to measles infection which triggers temporary immuno-depression similar to the well known phenomenon in humans. it is known that feral monkeys become infected with measles virus when they are exposed to humans. since macaca mulatta and m. fascicularis are species used to assay the neurovirulence of oral poliovirus vaccine, the immunodepression caused by measles infection of the test monkeys could significantly alter the results of the neurovirulence test. the seru ... | 1992 | 1319180 |
| indoor air '90: the 5th in a series of international conferences on the indoor environment. | the 5th international conference on indoor air quality and climate: indoor air '90 continued a series of international scientific conferences begun in 1978 on a complex, interdisciplinary subject increasingly recognized to be of importance to human comfort, health and productivity, and having important implications for building design and furnishing, office equipment, appliances, cleaning, heating, ventilating, humidifying and air-conditioning. indoor air '90 constituted a week long program of 5 ... | 1992 | 1363431 |
| absence experience of career firefighters reaching mandatory retirement age. | | 1992 | 1403190 |
| prevalence of antibody to human t-cell lymphotropic virus type i/ii in people of caribbean origin in toronto. | to estimate the prevalence of antibody to human t-cell lymphotropic virus type i/ii (anti-htlv-i/ii) in people from an htlv-i/ii-endemic area (the caribbean) living in a nonendemic region (canada). | 1992 | 1423089 |
| vehicle injuries to joggers. case report and review. | a medico-legal case is presented where a jogger was struck by a car while crossing an intersection and later sought major damages in a civil court. this incident is reviewed in the context of overall information on injury to joggers by vehicles, and the possibility (raised by the defendant's counsel) that the euphoria generated by prolonged exercise may have created a sense of "invincibility" that predisposed the jogger to reckless actions. the defendants argued that the young man concerned was ... | 1992 | 1487926 |
| absence of human t-lymphotropic virus types i and ii infection in an ontario hemophilia population. | two hundred ninety-three serum samples from ontario hemophiliacs and 200 samples from human immunodeficiency virus-positive blood donors were screened for the presence of antibodies to human t-lymphotropic virus type i (htlv-i) by enzyme-linked immunosorbent assay, radioimmunoassay, and western blot techniques. none of the serum samples provided unequivocal positive results, but several samples gave inconclusive results. of the hemophiliacs with inconclusive serologic results from whom periphera ... | 1992 | 1502703 |
| influenza immunization program in long term care facilities. | infection control, nursing and occupational health at st mary's hospital and marian villa home for the aged collaborated to develop, present and evaluate a successful influenza immunization program for patients, residents and staff. the methods used may be applied to any health care facility for a major immunization program. the success of the program can be attributed to the enthusiastic efforts of all three departments and a dedicated task force. | 1992 | 1525380 |
| prevalence of hepatitis b surface antigen, hepatitis c antibody, and hiv-1 antibody among residents of a long-term-care facility. | to determine the prevalence of hepatitis b antigen (hbsag), antibody to hepatitis c virus (anti-hcv), and antibody to human immunodeficiency virus (anti-hiv) among residents of a long-term care facility. | 1992 | 1538038 |
| schneiderian papilloma of the nose and paranasal sinuses: the university of ottawa experience. | schneiderian papillomata of the nose and the paranasal sinuses are uncommon neoplasms. although histologically benign, malignancy can occur. the likely etiologic agent is the human papilloma virus. we reviewed the cases treated at university of ottawa-affiliated hospitals from 1969-1989. there were 35 patients consisting of 26 men and nine women with an average age of 55.8 years. the most common presenting symptom was unilateral nasal obstruction (71.4%). this was caused in most cases by an ipsi ... | 1992 | 1564756 |
| family physicians' attitudes toward advance directives. | to examine the attitudes toward, the experience with and the knowledge of advance directives of family physicians in ontario. | 1992 | 1596842 |
| distribution and characteristics of verocytotoxigenic escherichia coli isolated from ontario dairy cattle. | faecal swabs obtained from a random sample of 1131 cows and 659 calves on 100 southern ontario dairy farms were examined for verocytotoxigenic escherichia coli (vtec) using a vero cell assay. five isolates from each positive culture were tested similarly. positive colonies were examined with dna probes for shiga-like toxin i (slt-i) and slt-ii sequences. probe-negative colonies were tested for neutralization of verocytotoxicity using anti-slt-i and anti-slt-iiv antisera. colonies showing no neut ... | 1992 | 1601076 |
| carcinoma of the lung in ontario gold miners: possible aetiological factors. | a cohort of 54,128 men who worked in ontario mines was observed for mortality between 1955 and 1986. most of these men worked in nickel, gold, or uranium mines; a few worked in silver, iron, lead/zinc, or other ore mines. if mortality that occurred after a man had started to mine uranium was excluded, an excess of carcinoma of the lung was found among the 13,603 ontario gold miners in the study (standardised mortality ratio (smr) 129, 95% confidence interval (95% ci) 115-145) and in men who bega ... | 1991 | 1663386 |
| virology laboratory diagnosis of chronic fatigue syndrome. | | 1991 | 1669355 |
| shut out flu. | | 1992 | 1737303 |
| the canadian atherosclerosis society--history and present status. | since its inception in 1983 the canadian atherosclerosis society (cas) has established itself firmly on the national and international scene as a forceful scientific voice. its presence and activities have had their dominant expression at annual meetings held jointly with the royal college of physicians and surgeons of canada (rcpsc) and the canadian society for clinical investigation (csci) and in sponsoring other scientific and educational events, the most important of which was the canadian c ... | 1991 | 1742671 |
| results of a province-wide quality assurance program assessing the accuracy of cholesterol, triglycerides, and high-density lipoprotein cholesterol measurements and calculated low-density lipoprotein cholesterol in ontario, using fresh human serum. | to evaluate laboratory performance, eight to 13 samples of fresh human serum from volunteers were sent to 250 laboratories in the canadian province of ontario licensed to perform lipid analysis. fresh human specimens were used because of potential matrix effects with processed materials. we show that on all survey samples, 71% (range, 63% to 82%) of participating laboratories are within +/- 5% of the target cholesterol value and that 93% are within +/- 10%. the goal of the national cholesterol e ... | 1991 | 1768212 |
| effect of repeated annual reminder letters on influenza immunization among elderly patients. | | 1991 | 1890400 |
| [access to equal employment: retrospective studies and perspectives]. | reaching for more fair representation of women in all levels and in all areas of employment involves a fundamental change in mentalities and administrative practices. following twenty years of efforts to improve women's situation, where are we now? do men and women approve of the same strategies to eliminate sex discrimination? we will address these questions by relying on results obtained in the context of a research program developed at the university of ottawa. the results of these studies le ... | 1991 | 1958651 |
| a collaborative model for the clinical education of baccalaureate nursing students. | quality clinical supervision is fundamental for the consolidation of knowledge and the development of a professional identity for baccalaureate nursing students. problems in providing high-quality clinical supervision range from a lack of practitioner role models to inadequate or unsupportive learning environments. collaboration between the education and service sectors allows for the development of enriched clinical learning experiences for students. this paper describes an innovative collabora ... | 1991 | 2005282 |
| review of human and animal cases of coccidioidomycosis diagnosed in canada. | the first canadian case of coccidioidomycosis in a human was reported in 1952 and 11 more cases since then. this study provides details of other cases of coccidioidomycosis that have been diagnosed in canada. based on clinical details, isolation of coccidioides immitis, detection of a specific antibody (f band) for coccidioidomycosis by macro- or microimmunodiffusion tests, concurrently used with the complement fixation procedure, and histopathological findings, 116 more cases of this disease we ... | 1991 | 2014046 |
| hepatitis b and human immunodeficiency virus infection in street youths in toronto, canada. | hepatitis b and human immunodeficiency virus are transmitted by venereal contact or by the sharing of used needles during drug use. a questionnaire was administered to street youths admitting to prostitution and to a group denying prostitution, as well as to sexually active adolescents who lived with their family and were attending an adolescent medical clinic. the age, gender, race, number of sexual partners, condom use, illicit drug use, anal intercourse and admission to prostitution were reco ... | 1991 | 2062604 |
| geographical distribution of contaminants and productivity measures of herring gulls in the great lakes: lake erie and connecting channels 1978/79. | the distribution and size of colonies, residue levels of dde, ddt, hcb, dieldrin, mirex and pcbs in eggs, productivity and eggshell thickness were determined for herring gulls at 14 sites in lake erie and connecting channels. the centre of distribution for breeding herring gulls was the western basin where approximately 90% of the 6200 nests in the study area were located. seven of 22 colonies showed an average annual population increase of 48.3%. most of the increase in breeding herring gulls o ... | 1990 | 2108495 |
| universal precautions to prevent hiv transmission to health care workers: an economic analysis. | the universal precautions recommended by the us centers for disease control (cdc), atlanta, for the prevention of hiv (human immunodeficiency virus) transmission to health care workers are widely accepted, despite little documentation of their effectiveness and efficiency. we reviewed the evidence on the risk of hiv transmission to hospital workers and the effectiveness of the universal precautions. we also evaluated the costs of implementing the recommendations in a 450-bed acute care teaching ... | 1990 | 2158390 |
| new blood safety tests. ottawa. | | 1990 | 2175725 |
| report of the international committee on nickel carcinogenesis in man. | | 1990 | 2185539 |
| prevalence of verocytotoxigenic escherichia coli in ground beef, pork, and chicken in southwestern ontario. | samples of ground beef (225), pork (235) and chicken (200) were randomly selected from meat processing plants in the southwestern ontario area. supernatants of broth cultures of the samples were tested for verocytotoxins using a vero cell assay. neutralization of cytotoxic activity using antisera specific for three types of verocytotoxin (verotoxin 1, verotoxin 2 and shiga-like toxin ii) was performed on positive samples. isolation of verocytotoxigenic escherichia coli (vtec) was attempted from ... | 1990 | 2200697 |
| physicians' perception of personal risk of hiv infection and aids through occupational exposure. | physicians' response to acquired immune deficiency syndrome (aids) is poorly understood and often attributed to fear of human immunodeficiency virus (hiv) infection through occupational exposure. we surveyed 268 physicians from three geographic regions in north american with different specialties and responsibilities for hiv-positive patients. an important difference was found between the published risk and the physicians' perceived risk of infection after a single occupational exposure. almost ... | 1990 | 2207904 |
| differential diagnosis of rib lesions: a case study from middle woodland southern ontario circa 230 a.d. | the right ribs of an adult male (#18) from the levesconte burial mound in southern ontario show extensive osteolytic and/or osteobastic lesions, some with bone thickening, interpreted herein as evidence of a chronic actinomycotic infection. in the alveolus, the presence of periapical abscesses and periodonitis with secondary inflammation may be associated with the pathogenesis of this bacterial disease by providing the normally commensurate actinomyces israelii with the necessary conditions for ... | 1990 | 2275481 |
| aids-related knowledge, attitudes and behaviour in injection drug users attending a toronto treatment facility. | ninety injection drug users (61 males, 29 females) attending the addiction research foundation clinical institute completed an anonymous, self-administered questionnaire about their knowledge, attitudes and behaviour regarding human immunodeficiency virus (hiv) infection. sixty-two percent had used drugs for more than five years; 61% used primarily heroin, 20% cocaine. needle sharing was common: 76% within 5 years, 37% within the preceding month, although 87% named needle sharing as a risk facto ... | 1990 | 2311050 |
| hib vaccine coverage in children attending day care/nursery school in east york. | this survey assessed haemophilus influenzae b vaccine coverage and factors affecting compliance in children at increased risk. a telephone survey was conducted of a random sample of 75 children, aged 24-60 months, attending licensed day care/nursery schools in east york. 96% of the sample was surveyed; only 51% were vaccinated. older children were less likely to be immunized and there were more single-parent families among the non-vaccinated. the age, educational level and country of birth of th ... | 1990 | 2331655 |
| antimicrobial resistance of salmonella isolates from human and animal sources in ontario. | | 1990 | 2357739 |
| a follow-up study of patients advised to obtain influenza immunizations. | computers have been used in general practice to issue reminders to patients overdue for preventive procedures. although effective, issuing reminders may be inconsistent with the belief that patients should take responsibility for their own health. to assess the effect of a reminder on subsequent use of influenza prevention services, this study examined the three-year immunization behavior of 1,175 patients 65 years or older who were part of a randomized controlled trial. during the middle year o ... | 1990 | 2384206 |
| the national aids strategy is a start, nothing more. | | 1990 | 2390754 |
| palliative care: developing a comprehensive system in ontario. a discussion paper. april 1986. the grossman task force on human & social services. | | 1987 | 2453652 |
| determination of some specific isomers of polychlorinated biphenyl congeners in fatty foods of the canadian diet. | a total of 93 fatty food composites from the cities of ottawa and halifax (canada) were analyzed for 34 selected isomers of polychlorinated biphenyls (pcbs). all fatty foods contained some pcb isomers with the 2,3,4,2',4',5'- and 2,4,5,2',4',5'-hexachlorobiphenyls present in all samples, except in skim milk and some dehydrated soups. the overall lowest pcb residues of all food commodities were found in skim milk, lamb, margarine and soups. among the dairy products the highest pcb isomer levels w ... | 1989 | 2498139 |
| an epidemiologic assessment of exposure of children to polychlorinated biphenyls (pcbs) in a toronto community. | in 1985, the human exposure from a site of pcb (aroclor 1260) contamination in a toronto community was assessed. the primary source of potential exposure was soil. extensive surface soil sampling revealed levels greater than expected (geometric mean level = 0.19 ppm). children under age 6 were considered to be at greatest risk of exposure as they may absorb pcbs from ingested soil or skin contact. a sample of children aged 1-5 was recruited from the community (n = 30) and from a socio-demographi ... | 1989 | 2509058 |
| linkage analysis of the apolipoprotein c2 gene and myotonic dystrophy on human chromosome 19 reveals linkage disequilibrium in a french-canadian population. | the gene for human apolipoprotein c2 (apoc2), situated on the proximal long arm of chromosome 19, is closely linked to the gene for the most common form of adult muscular dystrophy, myotonic dystrophy (dm). six apoc2 rflps (taqi, bgli, bani, bamhi, ncoi, and avaii) have been identified to date. we have conducted a comprehensive dm linkage study utilizing all six rflps and involving 50 families and 372 individuals. the most informative rflps are, in descending order, ncoi (lod = 6.64, theta = 0.0 ... | 1989 | 2562820 |
| the national reference centre for human mycotic diseases. | | 1989 | 2605668 |
| isolation of verocytotoxin-producing escherichia coli from milk filters in south-western ontario. | a total of 1012 milk filters collected from 498 dairy farms in south-western ontario during three study periods (december 1985-march 1986) were tested for the presence of verocytotoxin-producing escherichia coli (vtec). vtec were detected and isolated using a vero cell assay. supernatants from 20 of the milk filter cultures had verocytotoxic activity and 7 vtec strains were isolated from these positive samples. the prevalence of vtec in the samples in each of the three study periods were 0.44, 0 ... | 1989 | 2649386 |
| a comparison of seasonal variation in birthweights between rural zaire and ontario. | we studied the birthweights in a rural area in zaire over a ten-year period and found a significant seasonal variation. also, we reviewed the birthweights in two areas of ontario over a five-year period. one area was in an ontario metropolitan hospital doing more than 2000 deliveries per year. the other was in a rural area in southwestern ontario doing about 500 deliveries per year. no statistically significant seasonal variation in birthweight was found in ontario. the seasonal variation in zai ... | 1989 | 2743244 |
| triaryl/alkyl phosphate residues in human adipose autopsy samples from six ontario municipalities. | | 1989 | 2775890 |
| commissions and biomedical ethics: the canadian experience. | canadians frequently have recourse to public commissions as a means of dealing with contentious public policy issues. this essay examines the role of philosophers and philosophy in nine such commissions, all of which have dealt with issues in biomedical ethics. the principal findings of this essay are that philosophers have not been used extensively by these commissions, and that the philosophical aspects of the issues under investigation have been dealth with quite inadequately. the essay concl ... | 1989 | 2778415 |
| epidemic keratoconjunctivitis associated with blepharoptosis. | | 1988 | 2844091 |
| dentistry, the law and aids. | | 1988 | 2968830 |
| aids patients wins case against hospital dental department. | | 1988 | 2974315 |
| outbreak of diarrhea in a day nursery in ontario. | | 1985 | 2986812 |
| studies on fastidious adenoviruses in ontario: a distinct strain associated with gastroenteritis. | from 100 cases of gastroenteritis among children caused by adenovirus infection in ontario, 33 virus isolates were divided into three categories according to their biological behavior in tissue cultures. so far, the results of neutralization tests, structural protein analysis, and dna restriction patterns showed that the virus of category 1 was similar to adenovirus type 40. however, the adenovirus of category 2 was a distinct adenovirus which shared some similarities with adenovirus type 5. vir ... | 1986 | 3009537 |
| birchall and benwell. murder in a canadian swamp. | on 21 february 1890, two woodsmen working in densely wooded blenheim swamp in southern ontario, canada, stumbled upon the dead body of a young englishman who had been killed by two gunshot wounds to the head. he was identified as frederick benwell by a married couple, the birchalls, who had traveled with him and another man, pelly, from england to new york city by ship about 1 week before. the birchalls lied regarding benwell's subsequent movements. questioning pelly revealed to detective john m ... | 1988 | 3052041 |
| posttransfusion hepatitis in toronto, canada. | five hundred seventy-six consecutive patients from the surgical, obstetrical, and medical services who had received transfusions of volunteer blood were followed-up at regular intervals for 6 mo. fifty-three (9.2%) developed acute posttransfusion non a, non b hepatitis. forty-seven (89%) had an incubation period between 2 and 8 wk. the frequency was not related to the age or sex of the patient, the indications for transfusion, the type of surgery, anesthesia, the presence of perioperative hypote ... | 1988 | 3134269 |
| organochlorine residues in adipose tissues, blood and milk from ontario residents, 1976-1985. | | 1988 | 3135931 |
| the costs and benefits of preventing influenza in ontario's elderly. | | 1988 | 3135932 |
| probable outbreak of influenza b in a nursing home--ontario. | | 1988 | 3242880 |
| influenza b outbreak in a home for the aged--ontario. | | 1988 | 3242892 |
| dirofilaria ursi-like parasites acquired by humans in the northern united states and canada: report of two cases and brief review. | two cases of subcutaneous dirofilariasis acquired in ontario and vermont are reported. the parasites in these and eight cases previously reported from the northern united states and canada are classified as resembling dirofilaria ursi, a primarily subcutaneous parasite of bears, or d. subdermata of porcupines, in the same region. a distinguishing morphological feature of the d. ursi-like group is the presence of distinct longitudinal cuticular ridges regularly and widely spaced on the outer surf ... | 1987 | 3310687 |
| influenza vaccination: a comparison of two outreach strategies. | despite longstanding recommendations for annual influenza vaccination of all people age 65 and older, only 20% or less are regularly immunized. this paper compares two methods of immunization outreach to the elderly population. in 1985 and 1986 vaccine was offered to patients who attended one family practice for any reason during the months of october and november. in 1985 if patients had not received vaccine by october 31 an informational letter recommending immunization was also mailed. in 198 ... | 1988 | 3342961 |
| organohalogen residues in human adipose autopsy samples from six ontario municipalities. | human adipose tissue samples obtained during autopsies in 6 canadian great lakes municipalities were analyzed for chlorobenzenes, polychlorobiphenyls, and organohalogen pesticide residues. the frequency of occurrence and the range and mean for 28 organohalogen residues are reported for male and female donors in each municipality. overall mean residue values in females were significantly higher than those in males for hexachlorobenzene, beta-hch, p,p'-dde,p,p'-ddd + o,p'-ddt, and p,p'-ddt. the me ... | 1988 | 3384793 |
| acquired immune deficiency syndrome in canada: the first 5 years of surveillance. | in the first 5 years of surveillance of reports of the acquired immune deficiency syndrome (aids) in canada, from february 1982, the laboratory centre for disease control, ottawa, was notified of 1133 cases reported through provincial ministries of health that met the case definition developed by the us centers for disease control, atlanta. most cases (82.2%) were reported from the homosexual/bisexual risk group. other risk groups were less frequently represented, in contrast to the experience i ... | 1988 | 3409117 |
| htlv-iii infection in canada in 1985. | more than 25 000 serum specimens have been tested for antibody to human t-lymphotropic virus type iii (htlv-iii) at the laboratory centre for disease control, ottawa, since august 1984. in 1985 the prevalence rates of antibody positivity among selected risk groups were as follows: patients with kaposi's sarcoma, 77%; patients with acquired immune deficiency syndrome (aids) or aids-related complex (arc), 66%; patients with hemophilia, 65%; symptomatic homosexual men, 48%; cohabitants of patients ... | 1986 | 3461870 |
| genetic polymorphism of mephenytoin metabolism. | | 1986 | 3523505 |
| evaluation of a confidential method of excluding blood donors exposed to human immunodeficiency virus. | a confidential self-administered questionnaire was given to all donors prior to blood donation (n = 95,917). the questionnaire describes acquired immunodeficiency syndrome (aids) high-risk groups and requires the donor to designate his blood for either laboratory purposes or for transfusion. six-hundred and twenty-seven people (0.65%; 78% men) designated their blood for laboratory purposes. in addition to routine enzyme-linked immunoassay (eia) screening for human immunodeficiency virus (hiv) an ... | 1986 | 3535180 |
| reproductive technology and the law in canada. | even leaving aside the question of the impact of reproductive technology on property law, successions, commercial law and the legal qualification to be given to some of the relationships it entails (e.g. 'deposit' of genetic material, 'lease and hire' of wombs, 'gifts' of embryos), there is no doubt that, like the discovery of the atom, no other scientific advance portends such an enormous potential for human benefits or harm. no other scientific advance will so affect the personal, intimate lif ... | 1986 | 3558768 |
| a critical evaluation of the use of mutagenesis, carcinogenesis, and tumor promotion data in a cancer risk assessment of 2,3,7,8-tetrachlorodibenzo-p-dioxin. | regulatory agencies in the western hemisphere are currently assessing the potential human health risks of environmental contamination by 2,3,7,8 tetrachlorodibenzo-p-dioxin (tcdd). some u.s. agencies such as the environmental protection agency (epa) and centers for disease control (cdc) have assumed that tcdd behaves as a tumor initiator in animals and have used linear low-dose mathematical extrapolation models for estimating any human risk. in contrast, the ontario ministry of the environment, ... | 1987 | 3575798 |
| cold-induced bradycardia in man during sleep in arctic winter nights. | | 1987 | 3583443 |
| levels of triaryl/alkyl phosphates in human adipose tissue from eastern ontario. | | 1986 | 3719141 |
| giardia lamblia in children in day-care centres in southern ontario, canada, and susceptibility of animals to g. lamblia. | in 1982, giardia lamblia cysts were found in the faeces of eight of 97 children (two to five years old) in day-care centres in guelph, ontario, canada. none of the infected children showed any of the classical signs of giardiasis. the survey was repeated in 1983 in the kitchner-waterloo area, ontario. in this survey nine of 147 children were infected with g. lamblia. experimentally established giardia-free colonies of mice, hamsters, rats, cats (adults and kittens) and dogs (adults and puppies) ... | 1986 | 3726998 |
| rate of campylobacter spp. isolation in three regions of ontario, canada, from 1978 to 1985. | isolation rates of campylobacter spp. were analyzed for an 8-year period, 1978 through 1985. three laboratories of the ontario ministry of health examined 146,842 human feces samples for bacterial pathogens, including campylobacter jejuni and campylobacter coli. campylobacter spp. were isolated from 5,580 specimens (3.8%), with monthly isolation rates ranging from 1.1 to 7.4%. the data showed a seasonal distribution of isolations, with peaks during the summer months (june to september). most inf ... | 1986 | 3771774 |
| molecular analysis confirms food source and simultaneous involvement of two distinct but related subgroups of salmonella typhimurium bacteriophage type 10 in major interprovincial salmonella outbreak. | more than 2,000 confirmed cases of food poisoning occurred in the four atlantic provinces of canada and in ontario during the second and third quarters of 1984. salmonella typhimurium phage type 10 was identified as the etiologic agent, and cheddar cheese was implicated as the source of infection. strains isolated from infected humans and from cheese were indistinguishable by biotyping, antibiotic resistance typing, and phage typing. plasmid analysis confirmed cheese as the source of infection a ... | 1985 | 3911899 |
| a population study of the jugular foramen bridging of the human cranium. | the author previously proposed a simple standard for diagnosing the jugular foramen bridging in man. the incidence of this bridging trait was investigated according to that standard in nine cranial series of east indians, micronesians, japanese, ainu, mongols, aleuts, alaskan eskimos, canadian eskimos, and ontario iroquois. no sex difference in incidence of the trait was recognized. side difference in trait incidence was also slight but was statistically significant in the combined series of all ... | 1986 | 3946593 |
| influenza vaccination in the elderly: 2. the economics of sending reminder letters. | reminder letters and follow-up telephone calls were used to increase influenza vaccination acceptance by 273 well elderly registered at an urban community health centre. the net effect of the reminder letters was to increase overall coverage to 43%, from 17% in the previous year. follow-up telephone calls to patients who had not responded to the letters increased coverage to only 55%. calculation of costs per additional vaccination given revealed that the use of reminder letters alone was much m ... | 1985 | 3971268 |
| inter-laboratory quality control of estrogen and progesterone receptor assays in breast cancer tissue using lyophilised cytosols. | in 1981 a quality control (qc) program for estrogen and progesterone receptor assays was organized among six laboratories in ontario, canada. twenty-three vials of lyophilised cytosol prepared from human breast tumor tissues were analysed by each laboratory over a two-year period. samples of each batch of qc material were analysed at least twice: either in the same batch or on separate occasions. the present study demonstrates the stability of the qc material, defines the relative accuracy of th ... | 1985 | 3986988 |