Abstract:
:The indirect immunofluorescence assay (IFA) is considered the reference method for diagnosing Q fever, but serology is also performed by complement fixation assay (CFA) or enzyme-linked immunosorbent assay (ELISA). However, comparability between these assays is not clear, and therefore a quality assessment was performed. A total of 25 serum samples from negative controls, Q fever patients, and a serial diluted high-positive sample were analyzed in 10 Dutch laboratories. Six laboratories performed CFA, 5 performed IFA, and 5 performed ELISAs. Three international reference laboratories from Australia, France, and the USA also participated in this study. Qualitative values between laboratories using the same methods were within close range, and all 3 methods correctly identified acute Q fever patients. The IFA, ELISA, and CFA are all suitable serodiagnostic assays to diagnose acute Q fever, but the IFA remains an important tool in the follow-up of patients and in identifying patients at risk for developing chronic Q fever.
journal_name
Diagn Microbiol Infect Disjournal_title
Diagnostic microbiology and infectious diseaseauthors
Herremans T,Hogema BM,Nabuurs M,Peeters M,Wegdam-Blans M,Schneeberger P,Nijhuis C,Notermans DW,Galama J,Horrevorts A,van Loo IH,Vlaminckx B,Zaaijer HL,Koopmans MP,Berkhout H,Socolovschi C,Raoult D,Stenos J,Nicholson Wdoi
10.1016/j.diagmicrobio.2012.09.001subject
Has Abstractpub_date
2013-01-01 00:00:00pages
16-21issue
1eissn
0732-8893issn
1879-0070pii
S0732-8893(12)00356-2journal_volume
75pub_type
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