Table 2.
Genetic distances observed among the WNV of the current outbreak and the closest sequences in the phylogeny in terms of nucleotide differences. IT08, IT12-13, and IT11 refer, respectively, to the 2008, 2012–2013, and 2011 Italian outbreaks, with several sequences. The values are average distances between all the sequences in the cluster and the compared sequence.
| 2_44013532 | 4_44013537 | 5_44013538 | 6_44025400 | FJ766331 | FJ766332 | JF707789 | JF719069 | KU588135 | MF797870 | MN149538 | IT081 | IT12-132 | IT113 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2_44013532 | 0.0 | 8.0 | 5.0 | 5.0 | 226.0 | 224.0 | 240.0 | 182.0 | 330.0 | 293.0 | 252.0 | 136.0 | 238.5 | 248.0 |
| 4_44013537 | 8.0 | 0.0 | 8.0 | 7.0 | 209.0 | 207.0 | 222.0 | 165.0 | 302.0 | 265.0 | 234.0 | 127.0 | 219.5 | 224.0 |
| 5_44013538 | 5.0 | 8.0 | 0.0 | 4.0 | 221.0 | 219.0 | 235.0 | 178.0 | 320.0 | 289.0 | 250.0 | 133.0 | 232.5 | 244.0 |
| 6_44025400 | 5.0 | 7.0 | 4.0 | 0.0 | 221.0 | 219.0 | 235.0 | 178.0 | 322.0 | 289.0 | 250.0 | 133.0 | 233.5 | 242.0 |
| FJ766331 | 226.0 | 209.0 | 221.0 | 221.0 | 0.0 | 6.0 | 37.0 | 182.0 | 268.0 | 243.0 | 185.0 | 179.0 | 174.0 | 192.0 |
| FJ766332 | 224.0 | 207.0 | 219.0 | 219.0 | 6.0 | 0.0 | 35.0 | 180.0 | 266.0 | 241.0 | 185.0 | 177.0 | 172.0 | 190.0 |
| JF707789 | 240.0 | 222.0 | 235.0 | 235.0 | 37.0 | 35.0 | 0.0 | 197.0 | 277.0 | 260.0 | 204.0 | 193.5 | 190.0 | 208.5 |
| JF719069 | 182.0 | 165.0 | 178.0 | 178.0 | 182.0 | 180.0 | 197.0 | 0.0 | 298.0 | 250.0 | 219.0 | 137.0 | 197.0 | 202.0 |
| KU588135 | 330.0 | 302.0 | 320.0 | 322.0 | 268.0 | 266.0 | 277.0 | 298.0 | 0.0 | 246.0 | 258.0 | 295.0 | 277.5 | 298.0 |
| MF797870 | 293.0 | 265.0 | 289.0 | 289.0 | 243.0 | 241.0 | 260.0 | 250.0 | 246.0 | 0.0 | 210.0 | 258.5 | 233.5 | 260.0 |
| MN149538 | 252.0 | 234.0 | 250.0 | 250.0 | 185.0 | 185.0 | 204.0 | 219.0 | 258.0 | 210.0 | 0.0 | 216.0 | 197.5 | 220.5 |
| IT08 1 | 136.0 | 127.0 | 133.0 | 133.0 | 179.0 | 177.0 | 193.5 | 137.0 | 295.0 | 258.5 | 216.0 | 10.5 | 198.0 | 206.3 |
| IT12-13 2 | 238.5 | 219.5 | 232.5 | 233.5 | 174.0 | 172.0 | 190.0 | 197.0 | 277.5 | 233.5 | 197.5 | 198.0 | 9.75 | 192.3 |
| IT11 3 | 248.0 | 224.0 | 244.0 | 242.0 | 192.0 | 190.0 | 208.5 | 202.0 | 298.0 | 260.0 | 220.5 | 206.3 | 192.25 | 2.0 |
1 Sequences GU011992, JF719068, KF234080, FJ483549, FJ483548, JF719065, JF719067, and JF719066, from the 2008–2009 Italian outbreak [43]. 2 Sequences KC954092, KF647253, JX556213, and JQ928174 from the 2012 and 2013 Italian outbreaks [12,42]. 3 Sequences JN858069 and JQ928175 from the 2011 Italian outbreak [44].