Table 1.

Laboratory comparison of the BinaxNOW Filariasis card test and the Alere Filariasis Test Strip using banked serum/plasma samples

Serum group	Origin of samples	No. tested	No. of positive tests		Remarks
			Card	Strip
W. bancrofti	Sri Lanka*	29	28	29	One card had an invalid result
W. bancrofti	Haiti†	59	59	59	One card had an invalid result
Brugia timori	Indonesia*	10	1	2	Sera were collected in an area that was coendemic for W. bancrofti
Onchocerca volvulus	Cameroon*	14	0	0	Five individuals were coinfected with L. loa
Mansonella perstans	Uganda*	10	0	0	Two card tests had invalid results
Strongyloides stercoralis or hookworm	Uganda*	10	0	1	Sera were collected in an area that was coendemic for W. bancrofti
Non-endemic	Haiti†	20	0	0
Non-endemic	Argentina†	20	0	0
Non-endemic	United States*	20	0	0	One test strip had an invalid result
Non-endemic	United States†	25	0	0	One test strip had an invalid result
Non-endemic, RF ≥ 1:64	United States*	10	0	0	RF > 1:64
Total		227	88	91

RF = rheumatoid factor.

^*Samples tested at Washington University.

^†Samples tested at The Centers for Disease Control and Prevention.