| 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 |
| seroepidemiology of q fever among cats in new brunswick and prince edward island. | the indirect microimmunofluorescence test was used to determine the presence of antibodies to phase i and phase ii coxiella burnetii antigens in new brunswick and prince edward island cats. twenty of 104 (19.2%) new brunswick cats tested had antibodies to phase ii antigen; five of these (4.8%) also had antibodies to phase i antigen. six of 97 (6.2%) prince edward island cats tested had antibodies to phase i and phase ii antigens. our data suggest that cats may be important in the epidemiology of ... | 1990 | 2378456 |
| endocarditis due to q fever in nova scotia: experience with five patients in 1981-1982. | q fever endocarditis is rarely reported in north america; only four cases have been documented since 1953. in 1981-1982, five cases were identified in the victoria general hospital, halifax, nova scotia. four patients were from widely separated areas of nova scotia and one was from prince edward island. four patients with long-standing valvular abnormalities, including two with prosthetic valves, presented with recurrent febrile episodes. the fifth patient, who was previously well, had recurrent ... | 1983 | 6655300 |
| 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 in nova scotia and prince edward island. | the prevalence of coxiella burnetti infection (q fever) was determined among nova scotia (n.s.) and prince edward island (p.e.i.) blood donors by using the complement fixation and microimmunofluorescence (if) test. the complement fixation and if antibody tests measured antibody prevalence for the phase ii or phase i and ii antigens, respectively. complement-fixing antibodies to phase ii antigen were detected in 4.1% of 997 n.s. and 5.0% of 219 p.e.i. blood donors. anti-phase ii antibodies were d ... | 1984 | 6713300 |