| q fever endocarditis in queensland. | thirteen patients with proven q fever endocarditis and three additional patients with probable endocarditis are reviewed. the most helpful diagnostic test is the demonstration of a high complement fixing antibody titre to phase 1 antigen of coxiella burneti. the macroscopic pathology of the aortic valve is described and includes aneurysmal pockets in the aortic wall and valve annulus which are demonstrable angiographically. evidence is presented that the infection may be controlled by prolonged ... | 1976 | 1253390 |
| a randomized, controlled, double-blind, cross-over, clinical trial of q fever vaccine in selected queensland abattoirs. | a limited, randomized, blind, placebo-controlled trial of q fever and influenza vaccines has been conducted in three queensland abattoirs on a sequential analysis design. ninety-eight subjects were given q fever vaccine and 102 influenza vaccine. q fever cases were observed in unvaccinated workers in all three abattoirs during the period of observation. a total of seven q fever cases in one group, one more than the number required to achieve statistical significance between the two vaccine group ... | 1990 | 2182329 |
| vaccine prophylaxis of abattoir-associated q fever: eight years' experience in australian abattoirs. | during the period 1981-8 a clinical trial of a q fever vaccine (q-vax; commonwealth serum laboratories, melbourne) has been conducted in abattoir workers and other at-risk groups in south australia. volunteers in four abattoirs and visitors to the abattoirs were given one subcutaneous dose of 30 micrograms of a formalin-inactivated, highly-purified coxiella burnetii cells, henzerling strain, phase 1 antigenic state, in a volume of 0.5 ml. during the period, over 4000 subjects have been vaccinate ... | 1990 | 2323360 |
| q fever in a queensland meatworks. | an epidemiological study of q fever infection in a brisbane meatworks was undertaken. a retrospective 10-year study (1968 to 1977) revealed an average annual incidence of 1% for the nine years excluding 1969, while an outbreak with a 7.9% incidence occurred in 1969. no seasonal distribution was found. results indicated that cattle form the major source of coxiella burneti (infectious agent of q fever) in the meatworks and that the highest risk of infection exists on the cattle slaughter floor. t ... | 1980 | 7402154 |
| q fever vaccination in queensland abattoirs. | outbreaks of q fever continue to be recorded in abattoirs despite a protective vaccine being available. all accredited abattoirs in queensland were surveyed to ascertain the number that conducted q fever vaccination programs. only ten of the 30 abattoirs had vaccination programs. vaccination programs were present at all abattoirs with more than 360 employees. thirty-seven per cent of abattoir employees worked at abattoirs that did not have vaccination programs. research is required into the atti ... | 1997 | 9079588 |
| a review of q fever in australia 1991-1994. | q fever continues to be an important disease in australia. despite the development of an effective vaccine that has been commercially available since 1989, the number of cases notified has continued to increase. this study reviewed national notifications of q fever between 1991 and 1994, together with demographic, socioeconomic and occupational information, to investigate temporal and spatial disease patterns. based on notification data, q fever can be considered primarily a disease of adult mal ... | 1997 | 9489189 |
| range expansion of the tick amblyomma triguttatum triguttatum, an australian vector of q fever. | the tick amblyomma triguttatum triguttatum has previously been reported from western australia, queensland and new south wales. a viable population of this species, including all developmental stages, has now been discovered on the southern end of yorke peninsula, south australia. species determination was carried out morphologically and using 18s and 16s rrna. the data for 16s rrna are the first published for this species. amblyomma t. triguttatum is significant through its involvement in the n ... | 2000 | 10899523 |
| infectivity, transmission and 16s rrna sequencing of a rickettsia, coxiella cheraxi sp. nov., from the freshwater crayfish cherax quadricarinatus. | a rickettsia-like organism isolated from infected, farm-reared cherax quadricarinatus was cultured in the yolk sac of developing chicken eggs, but could not be cultured in 3 continuous cell lines, bluegill fry (bf-2), fathead minnow (fhm), and spodoptera frugiperda (sf-9). the organism was confirmed by fulfilling koch's postulates as the aetiological agent of mortalities amongst c. quadricarinatus. when c. quadricarinatus was inoculated with the organism, mortality was 100% at 28 degrees c and 8 ... | 2000 | 10918979 |
| q fever: a recent 'outbreak' in townsville. | | 2003 | 12680991 |
| a serosurvey of coxiella burnetii infection in children and young adults in south west queensland. | to describe the seroepidemiology of coxiella burnetii, the causative agent of q fever, in those under 25 years of age in south west queensland. | 2010 | 20920110 |
| q fever seroprevalence in metropolitan samples is similar to rural/remote samples in queensland, australia. | q fever is a vaccine preventable disease; however, despite this, high notification numbers are still recorded annually in australia. we investigated the seroprevalence of coxiella burnetii, the q fever agent, in a queensland sample population. notification data (n = 6425) from 1984-2008 were collated, identifying high risk areas of q fever exposure. of these 177 were recorded in children. serum samples were collected from queensland and screened using both an immunoflourescence assay at 1:10 dil ... | 2011 | 21499708 |
| serological evidence of coxiella burnetii infection in beef cattle in queensland. | queensland has the highest incidence of q fever in australia. the aim of this study was to undertake a cross-sectional seroprevalence survey of coxiella burnetii, the causative agent of q fever, in beef cattle in queensland. | 2011 | 21696375 |
| in this year of the veterinarian, we are including a series of papers on the history of veterinary medicine in australia. | disease control during the colonial period in australiaôçâ-àôçâneurological diseases of ruminant livestock in australiaôçâ-àôçâcoxiella burnetii in beef cattle in queenslandôçâ-àôçâdesmotomy for flexural deformity in thoroughbredsôçâ-àôçâacute myeloid leukaemia in a thoroughbred foalôçâ-àôçâgrowth variants of avibacterium paragallinarumôçâ-àôçâvolvulus in a dugong. | 2011 | 21696368 |
| serological evidence of coxiella burnetii exposure in native marsupials and introduced animals in queensland, australia. | summarythe state of queensland has the highest incidence of q fever in australia. in recent years, there has been an increase in human cases where no contacts with the typical reservoir animals or occupations were reported. the aim of this study was to determine the seroprevalence of coxiella burnetii in australian native animals and introduced animals in northern and southeastern queensland. australian native marsupials sampled included the brushtail possum (trichosurus vulpecula) and common no ... | 2011 | 21892986 |
| determination of coxiella burnetii seroprevalence in macropods in australia. | many animal species, including macropods, have the potential to act as atypical reservoirs of the causative agent of q fever, coxiella burnetii. the objective of this study was to determine the seroprevalence of c. burnetii in various macropod species in australia. competitive and indirect elisas were developed for the testing of macropod sera for antibodies to phase ii and i c. burnetii antigens separately. a total of 500 macropod serum samples from selected species sampled in eastern and weste ... | 2011 | 21925808 |
| serological evidence of coxiella burnetii infection in dogs in a regional centre. | objective investigate the seroprevalence of the causative agent of q fever, coxiella burnetii in domestic dogs in the townsville region, north queensland, australia. method blood samples were collected from dogs attending veterinary clinics for routine procedures. results an overall seropositivity of 21.8% (95% confidence interval (ci) 21.6-22.1%) was observed. a retrospective study of samples collected in the same region during 1984-85 was also performed, with an overall seropositivity of 16.0% ... | 2011 | 21933165 |