PMC

Locations of study sites in Germany and phylogenetic analysis of Usutu virus (USUV) strains. For each trapping site, proportions and number of collected mosquitoes are given as a pie chart. Mosquitoes in the pool that were positive for USUV were trapped at Weinheim (underlined). The Bayesian phylogenetic tree was inferred with MrBayes and is based on partial protein envelope nucleotide sequences (length = 1,215 nucleotides) of USUV. For each sequence, the GenBank accession number, strain designation, and strain origin are shown. Posterior probabilities are shown on each node, if higher than 0.50. Scale bar indicates number of nucleotide substitutions per site.