Table 2.
The genomic evolutionary characteristics of the sequenced IBV strains in the surveillance stratified by phylogenomic cluster.
| Phylogenomic cluster | No. of isolates (Kilifi) | tMRCA |
Substitution rate × 10−3 |
||||
|---|---|---|---|---|---|---|---|
| Mean | Low 95% HPD | High 95% HPD | Mean | Low 95% HPD | High 95% HPD | ||
|
Pure B/Vic/clade1A |
209 (93) | Mar 2012 | Jul 2011 | Oct 2012 | 1.37 | 1.18 | 1.56 |
| Reassorted B/Vic/clade1A | 1 (1) | – | – | – | – | – | – |
|
Pure B/Yam/clade2 |
46 (2) | Oct 2011 | Nov 2010 | Aug 2012 | 1.36 | 1.02 | 1.75 |
|
Pure B/Yam/clade3 |
157 (6) | May 2013 | Mar 2013 | Aug 2013 | 1.40 | 1.27 | 1.53 |
| Reassorted B/Yam/clade3 | 79 (9) | Oct 2012 | Mar 2012 | April 2013 | 1.54 | 1.33 | 1.76 |
Yam for Yamagata, Vic for Victoria, substitution rate units are nts/site/year.