Table 4: Similarity between BTV4 (MOR 2009) and previous strains of BTV-1 and 4 from Morocco showing evidence of reassortment.
| BTV-4 MOR 2004/02 % similarity with MOR 2009-09 | BTV-4 MOR 2009-09 Genome segment number | BTV-1 MOR 2006/06 % similarity with MOR 2009-09 |
| 98,8% | 1 | 99,8%* |
| 99,6%* | 2 | 49,9% |
| 99,4%* | 3 | 94,9% |
| 95,9% | 4 | 99,8%* |
| 96,8% | 5 | 100%* |
| 99,8%* | 6 | 69,2% |
| 94,1% (4MOR2009/10) | 7 | 100%* |
| - | 8 | - |
| - | 9 | - |
| - | 10 | - |
*High % similarity.