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Prevalence of Strongyloides stercoralis infection and associated clinical symptoms among schoolchildren living in different altitudes of Amhara National Regional State, northwest Ethiopia

Fig 2

Frame for study sites, schools and schoolchildren in Amhara Region, 2019.

The blue arrows show how multi-stage sampling was conducted to select the districts, the primary schools and schoolchildren.

doi: https://doi.org/10.1371/journal.pntd.0010299.g002