Yellow fever virus antibodies

Which test do we use?

Immunofluorescence test to detect IgG and 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

During the first week after onset of fever, virus itself can be detected by PCR.


Please indicate country of origin , date of onset of symptoms and sampling date on the application form.


For requests in the context of vaccination, see ‘Yellow fever virus neutralizing antibodies’.


Request form National Reference Center (NRC)


For requests in the context of symptoms due to vaccination, the clinical biologist has to be contacted.


1x / week

Reference values


Delivery time of the result

On average: 7 days


IFAT: yes
ISO 15189 – Belac 147-MED


551250 / 551261


IgG: 41217-1

IgM: 41216-3

Laatste wijziging op: 13/07/2023