. 2004 Apr;78(8):4330–4341. doi: 10.1128/JVI.78.8.4330-4341.2004

TABLE 1.

Summary of diagnostic testing by antigen-capture ELISA and RT-PCR during the EHF outbreak in Gulu, Uganda

Assay	No. of samples tested	No. of positive samples	No. of false positives^a	No. of false negatives^b	No. of PCR⁺ Ag⁺ samples	No. of PCR⁺ Ag⁻ samples
Assay	No. of samples tested	No. of positive samples	No. of false positives^a	No. of false negatives^b	No. of PCR⁺ Ag⁺ samples	Early detection	Late detection
Antigen-capture ELISA	1,771	282	1	0
RT-PCR	1,083	246	3^e	4
Total					196	17^c	20^d

False positives were defined as samples that initially tested positive by a particular assay but tested negative with a subsequent sample from the same patient and for which all other diagnostic tests were and continued to be negative.

False negatives were defined as samples that tested negative by nested RT-PCR and positive by antigen capture.

Represents 13 patients for which the maximum time between PCR⁺ Ag⁻ samples was 72 to 96 h.

Represents 18 patients for which the maximum time between PCR⁺ Ag⁻ samples was 48 to 72 h.

There were an additional 10 potential false positives that were unresolvable.