Loa Loa – Microfilariae in blood (Knott's concentrate)

France, Sarfati Claudine

Loa loa microfilariae have a diurnal periodicity, so search should be carried out on a blood sample collected between 10:00 AM and 03:00 PM (sideral time). Knott’s concentration is an efficient method that increases the detection power in case of low parasitemia.