Additional file 1: of Asymptomatic infections with highly polymorphic Chlamydia suis are ubiquitous in pigs

Mid-point rooted NJ phylogeny of ompA variable domains 1-2. A 489 bp region encompassing ompA VD1-2 sequences of 77 porcine C. suis strains identified in this study (in red font; name of strain, countries, sample type and accession number) are compared with 50 other C. suis sequences deposited in GenBank from six countries: Germany, Switzerland, Italy, USA, Japan and China (in black font). Branch lengths are measured in nucleotide substitutions and numbers show branching percentages in bootstrap replicates. Scale bar represents the percent sequence diversity. (PDF 376 kb)