Table 2.
ELISA assay results summary per antigen and location.
| Province (Sample Type) | Town | CPS | OPS | Hcp1 | Seropositivity Rate (#Positive Samples/Total Samples; %) | |||
|---|---|---|---|---|---|---|---|---|
| # of Tests | Au450 * Median (IQR †) | # of Tests | Au450 Median (IQR) | # of Tests | Au450 Median (IQR) | |||
| Ha Tinh (FARM) | KV | 20/20 | 0.094 (0.088–0.100) | 20/20 | 0.095 (0.087–0.101) | 1/20 | 0.918 (0.918–0.918) | 1/20; 5.0% |
| TL | 32/32 | 0.081 (0.075–0.087) | 32/32 | 0.083 (0.071–0.101) | 6/32 | 0.529 (0.117–0.917) | 5/32; 15.6% | |
| XH | 58/58 | 0.086 (0.075–0.095) | 58/58 | 0.099 (0.084–0.114) | 4/58 | 0.123 (0.102–0.150) | 0/58; 0.0% | |
| XM | 55/55 | 0.075 (0.068–0.090) | 55/55 | 0.081 (0.074–0.109) | 0/55 | NP ‡ | 0/55; 0.0% | |
| HM | 58/58 | 0.078 (0.07–0.090) | 58/58 | 0.079 (0.069–0.092) | 0/58 | NP | 0/58; 0.0% | |
| VQ | 113/113 | 0.087 (0.073–0.096) | 113/113 | 0.092 (0.080–0.104) | 6/113 | 0.676 (0.577–0.900) | 6/113; 5.31% | |
| SK | 161/161 | 0.076 (0.070–0.086) | 161/161 | 0.079 (0.069–0.095) | 1/161 | 0.217 (0.217–0.217) | 1/161; 0.62% | |
| HL | 58/58 | 0.073 (0.067–0.083) | 58/58 | 0.094 (0.081–0.109) | 0/58 | NP | 0/58; 0.0% | |
| TH | 58/58 | 0.071 (0.065–0.086) | 58/58 | 0.094 (0.079–0.105) | 0/58 | NP | 0/58; 0.0% | |
| DA | 28/28 | 0.089 (0.079–0.093) | 28/28 | 0.086 (0.077–0.097) | 0/28 | NP | 0/28; 0.0% | |
| PG | 28/28 | 0.086 (0.080–0.094) | 28/28 | 0.088 (0.085–0.103) | 0/38 | NP | 0/38; 0.0% | |
| PL | 74/74 | 0.084 (0.076–0.095) | 74/74 | 0.117 (0.099–0.248) | 19/74 | 0.201 (0.177–0.382) | 18/74; 24.3% | |
| Sub-total | 743/743 | 0.080 (0.056–0.091) | 743/743 | 0.089 (0.076–0.105) | 37/743 | 0.217 (0.168–0.552) | 31/743; 4.17% | |
| Hoa Binh (GRAZE) | MG | 50/50 | 0.104 (0.09–0.104) | 50/50 | 0.116 (0.097–0.134) | 4/50 | 0.272 (0.254–0.758) | 4/50; 8.0% |
| GD | 68/68 | 0.098 (0.086–0.098) | 68/68 | 0.115 (0.099–0.141) | 7/68 | 0.232 (0.162–0.324) | 6/68; 8.8% | |
| DK | 60/60 | 0.099 (0.092–0.099) | 60/60 | 0.100 (0.089–0.147) | 4/60 | 0.239 (0.178–1.316) | 4/60; 6.7% | |
| TM | 60/60 | 0.104 (0.085–0.104) | 60/60 | 0.111 (0.093–0.146) | 6/60 | 0.236 (0.194–0.303) | 6/60; 10.0% | |
| CS | 30/76 | 0.095 (0.086–0.095) | 30/76 | 0.096 (0.087–0.115) | 48/76 | 0.240 (0.185–0.348) | 13/76; 17.1% | |
| TT | 15/38 | 0.082 (0.073–0.082) | 15/38 | 0.088 (0.077–0.126) | 24/38 | 0.184 (0.138–0.246) | 7/38; 18.4% | |
| Sub-total | 283/352 | 0.098 (0.061–0.11) | 283/352 | 0.110 (0.091–0.140) | 93/352 | 0.232 (0.174–0.295) | 40/352; 11.36% | |
| Nghe An (FARM) | NT | 30/30 | 0.071 (0.068–0.077) | 30/30 | 0.073 (0.068–0.080) | 3/30 | 0.213 (0.192–0.215) | 0/30; 0.00% |
| Sub-total | 30/30 | 0.071 (0.068–0.077) | 30/30 | 0.073 (0.068–0.080) | 3/30 | 0.213 (0.192–0.215) | 0/30; 0.00% | |
| Total | 1056/1125 | 0.084 (0.056–0.097) | 1056/1125 | 0.093 (0.078–0.114) | 133/1125 | 0.232 (0.177–0.346) | 71/1125; 6.31% | |
* Au450 = absorbance at 450 nm; † IQR = interquartile range; ‡ NP = not performed.