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Figure 2 | Parasites & Vectors

Figure 2

From: Epidemiology of Giardia duodenalis infection in ruminant livestock and children in the Ismailia province of Egypt: insights by genetic characterization

Figure 2

Spatial distribution of samples containing assemblage B and E type parasites. Clusters of concatenated B and E type sequences were defined based on sequence identity, i.e. sequences that were identical or that differed in maximally one base pair were combined in one cluster. The spatial distribution of sequence types was visualized on a map of the study region. (A) Analysis of the 8 B type sequences revealed one cluster with 2 sequences that differed in one base pair (samples H66 and H90). (B) Analysis of 29 E type sequences revealed 4 clusters. Cluster 1 comprising of the identical sequences of samples 31b/C7 and 33c/B7. Cluster 2 comprising of the 4 identical sequences of samples 40b/C7, 41a/C1, 43a/B1 and 43a/C25, and of sequence of sample 32a/C2 that differed in one base pair. Cluster 3 comprising of sequences of samples 5a/C1 and 7a/C9 that differ in one base pair. Cluster 4 comprising of sequences of samples 35a/C2 and 35c/C8 that differ in one base pair. Note that sample 40c/C10 (shaded grey area) differed only in three base pairs from sample 40b/C7 of cluster 2.

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