Table 4. Average risk point scores and ranked weighting applied to risk scoring of influenza A(H7N9) virus isolate A/Shanghai/1/2013 for emergence and impact questions, April 2013 and May 2013*.
| Emergence question |
Impact question |
|||||||
|---|---|---|---|---|---|---|---|---|
| Element | Weight | Average point scores |
Element | Weight | Average point scores |
|||
| Apr 2013 | May 2013 | Apr 2013 | May 2013 | |||||
| Human infections | 0.2929 | 5.0 | 5.0 | Disease severity | 0.2929 | 9.0 | 8.5 | |
| Transmission (laboratory animals) | 0.1929 | 1.0 | 7.0 | Population immunity | 0.1929 | 9.0 | 9.0 | |
| Receptor binding | 0.1429 | 6.7 | 6.3 | Human infections | 0.1429 | 5.0 | 5.0 | |
| Population immunity | 0.1096 | 9.0 | 9.0 | Antivirals/treatment options | 0.1096 | 5.4 | 5.8 | |
| Infections in animals | 0.0846 | 6.0 | 4.7 | Antigenic relationship | 0.0846 | 6.0 | 3.7 | |
| Genomic variation | 0.0646 | 8.6 | 8.6 | Receptor binding | 0.0646 | 6.7 | 6.3 | |
| Antigenic relationship | 0.0479 | 6.0 | 3.7 | Genomic variation | 0.0479 | 8.6 | 8.6 | |
| Global distribution (animals) | 0.0336 | 1.0 | 4.7 | Transmission
(laboratory animals) | 0.0336 | 1.0 | 7.0 | |
| Disease severity | 0.0211 | 9.0 | 8.5 | Global distribution (animals) | 0.0211 | 1.0 | 4.7 | |
| Antivirals/treatment options | 0.001 | 5.4 | 5.8 | Infections in animals | 0.001 | 6.0 | 4.7 | |
| Weighted IRAT aggregate score | 5.2 | 6.2 | Weighted IRAT aggregate score | 7.1 | 7.0 | |||
*IRAT, Influenza Risk Assessment Tool.