... central strain of that family than t o any otherfamily, including “ pure” subtypes, l ike the examplesshowninFigs.1,2,3.Eachfamilywouldbedefinedby a central se quetype and the radius of family memberswould ... recombinant lineage.This finding also corrects a recent claim that G is a recombinant and a descendant of CRF02, which was suggestedto be a pure subtype. The BC and BF recombinants in China and ... both old and contemporary subtype A and G. BF recombinants in South America and BC in China are new, as theirparents are contemporary sequences. The black blobs (recombinants) and grey blobs...