Potential Zoonotic Transmission of Giardia duodenalis between Children and Calves in Bangladesh

Figure 3

Phylogenetic relationships of G. duodenalis isolates as determined by the MEGA program using the sequences of the bg (a), gdh (b), and tpi (c) genes and tandem sequences of the bg, gdh, and tpi genes (d). Bootstrap values greater than 50 percent are shown on nodes. The neighbor joining (NJ) trees were constructed based on the evolutionary distances calculated by the Kimura-2-parameter model. The reliability of the trees was assessed using bootstrap analysis with 1,000 replicates. The children and calf isolates are indicated by triangle and rectangle shapes, respectively. The known and novel subtypes are indicated by hollow and filled shapes, respectively.

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