Prevalence and Genetic Characteristics of Human Bocaviruses Detected in Patients with Acute Respiratory Infections in Bulgaria

Figure 4

Phylogenetic tree based on a fragment of the VP1/VP2 gene of hBoV and other parvoviruses. Genetic distances were measured with the Tamura-3 model with gamma distribution (T92 + G). The phylogenetic tree was constructed with the maximum likelihood (ML) algorithm using MEGA software (version 6.0). The sequence of prototype hBoV strain St1 is shown in bold. The Bulgarian sequences, detected in 2016, 2017, and 2018, are shown by purple, green, and blue rhombuses, respectively.