Bayesian phylogenetic analysis of the 1D (VP1) nucleotide sequence of Turkish serotype A isolates (black) and related published sequences (grey). Numbers on the nodes indicate clade credibility values. Turkey related lineages are indicated by names given from the FMD World Reference Laboratory. The vaccine lineage (since 2000) IRN 96 is subdivided into two parts, linked to the year of collection. The first occurring isolate, within the IRN 99 cluster is indicated by an asterisk. Formats of sequence name: accession number-country/province-year/month, year of collection. Sequences ending with a '#' are kindly provided by IAH Pirbright.