Table 3.
Norovirus detected in oysters sampled from three sampling points in the oyster production area, between 20 January and 7 March 2012
| Date | Average extraction efficiency | Downstream class A | Shellfish farm | Upstream class B |
|---|---|---|---|---|
| 20 January | 11% | 540 | +<LQ | 95 |
| 30 January | 10% | <LD | <LD | 430 |
| 7 February | 19% | – | +<LQ | <LD |
| 13 February | 41% | – | +<LQ | <LD |
| 21 February | 11% | – | 100 | <LD |
| 7 March | 10% | – | <LD | <LD |
Number of RNA copies/g DT for positives samples.
+ <LQ, Positive but below limit of quantification (70 RNA copies/g DT).
<LD, Below limit of detection (20 RNA copies/g DT).