|
Country
|
Sera analysed
|
Chagas patients (%)
|
ELISA 1 positive
|
ELISA 2 negative
|
WB positive
|
RT-PCR negative
|
Negative control
|
|---|
|
Argentina
|
122
|
40
|
41
|
50
|
36
|
50
|
12
|
|
Bolivia
|
117
|
68
|
11
|
-
|
-
|
-
|
20
|
|
Brazil
|
50
|
100
|
0
|
-
|
-
|
-
|
22
|
|
Cuba
|
10
|
0*
|
0
|
-
|
-
|
-
|
5
|
|
Mexico
|
100
|
70
|
9
|
-
|
-
|
-
|
8
|
|
Portugal
|
11
|
100#
|
0
|
-
|
-
|
-
|
8
|
|
Total
|
410
|
63
|
61
|
50
|
36
|
50
|
81
|
- Column 1 identifies the country of origin for the samples; results of the TrV sera analyses. Numbers in columns 4–7 indicate the number of serum samples employed in each analysis. ELISA assay 1 corresponds to reactivity against structural proteins, and ELISA assay 2 corresponds to reactivity against the non-structural protein RdRp. WB refers to immunoblotting analysis against the structural proteins of TrV. RT-PCR refers to reverse transcriptase-PCR*. Cuba is a non-endemic country for Chagas disease. #The sera from Portugal are imported case of Chagas disease, mainly from Brazil.
