Coxiella burnetii antibodies (Q-fever)

Which test do we use?

Immunofluorescence test to detect phase I and phase II IgG and IgM antibodies.


ELISA for detecting phase II IgM antibodies followed, if relevant, by an immunofluorescence assay for detecting phase I and phase II IgM antibodies.

Sampling instructions

For 1 or 2 serological analyses: at least 1 ml serum
For 3 to 5 serological analyses: at least 2 ml serum

Storage conditions

The serum can be sent at room temperature, but the duration of transportation must be reduced as much as possible (avoid weekends or holidays).

Important advice

Without clinical information and the date of the onset of the symtoms, interpretation of this test is impossible.


1-2x / week

Reference values


Delivery time of the result

On average: 3 days


ISO 15189 – Belac 147-MED


551176 / 551180


fase I IgG:           9708-9

fase II IgG:          9709-7

fase I IgM:          9710-5

fase II IgM:         9711-3

Laatste wijziging op: 11/12/2023