| truckin' pneumonia--an outbreak of q fever in a truck repair plant probably due to aerosols from clothing contaminated by contact with newborn kittens. | we describe an outbreak of q fever affecting 16 of 32 employees at a truck repair plant. none of the cases were exposed to cattle, sheep or goats, the traditional reservoirs of q fever. the cases did not work, live on, or visit farms or attend livestock auctions. one of the employees had a cat which gave birth to kittens 2 weeks prior to the first case of q fever in the plant. the cat owner fed the kittens every day before coming to work as the cat would not let the kittens suckle. serum from th ... | 1989 | 2917613 |
| an outbreak of q fever probably due to contact with a parturient cat. | thirty-three cases (24 definite, nine probable) of q fever were diagnosed in victoria county, cape breton, nova scotia from may to august, 1985. twenty-six of the cases occurred in residents of baddeck (population 900, attack rate 2.8 percent), and 21 of the cases occurred during the month of june. there was geographic clustering of the cases: 14 of the 33 (42 percent) lived or worked in four buildings located side by side in the center of town. a case control study revealed that 25 of 29 cases ... | 1988 | 3335174 |
| exposure to parturient cats: a risk factor for acquisition of q fever in maritime canada. | over a 34-mo period we studied 51 patients with q fever and 102 control subjects (with various lower-respiratory-tract infections) who were matched for age, sex, and time of onset of infection. by univariate analysis (not adjusted for multiple comparisons), cases differed significantly from controls in the following activities: working on a farm; slaughtering or dressing animals; and contact with cats, cattle, and sheep. the strongest association was with exposure to stillborn kittens--11 of 51 ... | 1988 | 3392409 |
| seroepidemiology of q fever among domestic animals in nova scotia. | we used the indirect microimmunofluorescence test to determine the presence of antibodies in sheep, cattle, goat, cat, and dog sera to phase i and ii coxiella burnetii antigens in nova scotia. only 6.7 per cent of the 329 sheep tested had antibodies to phase ii antigen and none had antibodies to phase i. of 29 goats tested, 7 per cent and 3.5 per cent had antibodies to phase ii and phase i antigens, respectively. in contrast, 23.8 per cent of the 214 cattle tested had antibodies to phase ii anti ... | 1985 | 3890569 |
| some issues raised on q fever study. | | 1986 | 3940459 |
| the importance of coxiella burnetii as a cause of pneumonia in nova scotia. | | 1985 | 4052906 |
| household outbreak of q-fever pneumonia related to a parturient cat. | an outbreak of febrile respiratory disease occurred over 11 days among thirteen adults in nova scotia, all members of an extended family and their friends. signs of illness included bradycardia at the same time as fever, palatal petechiae, and rapidly enlarging bilateral pulmonary infiltrates. ten of the patients had a four-fold rise in antibody to phase-2 q-fever antigen as determined by complement fixation on acute and 4-week-convalescent serum samples. six children of the extended family for ... | 1984 | 6151054 |
| listeria monocytogenes infections in canada. | since its first isolation by murray in 1926 listeria monocytogenes has become recognized as a significant pathogen occurring worldwide and involving a wide range of wild and domestic animals including man. the first confirmed human listeriosis case in canada was published by stoot in 1951. a later survey based on records maintained at the laboratory centre for disease control, ottawa showed 101 cases detected over a 21 year period in nine provinces. the overall mortality was 30%. the most freque ... | 1984 | 6442654 |
| highly presumptive identification of bacterial isolates associated with the recent canada-wide mastitis epizootic as nocardia farcinica. | a highly presumptive identification of nocardia farcinica was made of 47 bacterial isolates. fifteen isolates from alberta, 9 from ontario, and 2 each from new brunswick, newfoundland, and nova scotia were from clinical cases involved in the canadian mastitis epizootic. seventeen additional isolates from alberta were recovered from farm milk bulk tanks from herds found to have cows involved in the epizootic. all isolates were shown by high-performance liquid chromatography to possess mycolic aci ... | 1993 | 8364799 |
| associations between milk-protein production and reproduction, health, and culling. | associations between protein production and individual-cow reproductive performance, health, and culling were investigated in a 2-year observational study involving a convenience sample of 75 ontario, 5 alberta, and 3 nova scotia dairy farms. protein production was defined by 305-day lactation protein yields and by estimated breeding values for protein yield. after controlling for the level of milk production, herd, parity, breed, and season of calving, there were no significant associations bet ... | 1998 | 9638779 |
| relationships between bulk-tank antibodies to ostertagia ostertagi and herd-management practices and measures of milk production in nova scotia dairy herds. | monthly bulk-tank milk samples were obtained from 415 nova scotia dairy herds in each of the months of july-september 1998 and tested using an indirect microtitre elisa against a crude saline-extract, whole-worm ostertagia ostertagi antigen. elisa results (optical densities (ods)) were consistent across months (r=0.85) but there was considerable variation among herds. a questionnaire was sent by mail to all producers; information on management factors that would potentially influence parasite bu ... | 1999 | 11018736 |
| neospora then and now: prevalence of neospora caninum in maritime canada in 1979, 1989, and 1998. | the seroprevalence of neospora caninum was compared among new brunswick, nova scotia, and prince edward island in 1998, 1989, and 1979. in 1998, the seroprevalence was lowest in prince edward island, where it was the same as in 1989. neospora caninum was present in 1979, but at a lower prevalence. | 2000 | 11126492 |
| seroprevalence of infection with mycobacterium avium subspecies paratuberculosis, bovine leukemia virus, and bovine viral diarrhea virus in maritime canada dairy cattle. | the purpose of this study was to survey the seroprevalence of infection with the agents of production-limiting diseases in dairy cattle in new brunswick, nova scotia, and prince edward island. in 30 randomly selected herds per province, 30 cattle per herd were randomly selected and tested for antibodies to bovine leukemia virus (blv) and mycobacterium avium subspecies paratuberculosis (m. paratuberculosis), while 5 unvaccinated cattle over 6 months of age were tested for antibodies to bovine vir ... | 2001 | 11265187 |
| q fever in canada. | a canada-wide survey of q fever was begun in 1958 in co-operation with public health and veterinary laboratories to determine the presence and prevalence of the disease so that medical practitioners might be alerted to the potential dangers existing. serologic evidence obtained indicated that the q fever rickettsia now exists in cattle in all provinces of canada except new brunswick, nova scotia, and prince edward island. isolations of the rickettsia were obtained from bovine milk samples from o ... | 1964 | 14175873 |
| surviving bovine spongiform encephalopathy (bse): farm women's discussion of the effects of bse on food provisioning practices. | the economic vulnerability of beef and other farm families following the bovine spongiform encephalopathy (bse) crisis in canada poses a risk to their household food provisioning practices. the purpose of this study was to examine the effects of bse since 2003 on the food provisioning practices of beef and other farm families in three canadian provinces. semi-structured, face-to-face, in-depth interviews were conducted with 22 farm women (6 in alberta, 6 in ontario, and 10 in nova scotia) that f ... | 2009 | 19697243 |
| management practices associated with the bulk-milk prevalence of staphylococcus aureus in canadian dairy farms. | when designing mastitis-prevention and control programs, it is important to know the level of adoption of mastitis-prevention management practices and control programs and the herd-level prevalence of contagious mastitis pathogens. our objectives were to estimate: (1) adoption of recommended mastitis-preventive management on canadian dairy farms; (2) herd-level prevalence of contagious mastitis pathogens on canadian dairy farms; and (3) associations of certain management practices with the isola ... | 2010 | 20696486 |
| the enigma of pictou cattle disease. | | 2010 | 21286334 |