Q Fever Update in Maritime Canada
Author Information
Author(s): Marrie Thomas J., Campbell Nancy, McNeil Shelly A., Webster Duncan, Hatchette Todd F.
Primary Institution: University of Alberta
Hypothesis
Is Q fever still occurring in Maritime Canada and has the decline in cases been real or an artifact of decreased surveillance?
Conclusion
Acute Q fever is still present in Maritime Canada, but the number of cases has significantly decreased since the 1980s and early 1990s.
Supporting Evidence
- Q fever was common in Nova Scotia with 50–60 cases per year in a population of approximately 950,000.
- Since 2004, only 4–5 cases of Q fever have been reported each year.
- All 11 patients in the study had symptoms like sweats, fever, and myalgia, with 6 showing pneumonia on chest radiographs.
Takeaway
Q fever is a disease that can cause pneumonia, and while it's still around in Maritime Canada, there are fewer cases than before.
Methodology
Serum samples from patients suspected of having Q fever were tested for antibodies to Coxiella burnetii using ELISAs and indirect immunofluorescence tests.
Limitations
The passive design of the study may have underestimated the number of cases.
Participant Demographics
Of the 11 participating patients, 6 were male, and the mean age was 54.6 years.
Digital Object Identifier (DOI)
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