Rates of infection with Giardia and Cryptosporidium have shown an increasing trend, but rates of infection with Entamoeba histolytica and its non-pathogenic asymptomatic variant E. dispar have tended to decrease.
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Rates of infection with Giardia and Cryptosporidium have shown an increasing trend, but rates of infection with Entamoeba histolytica and its non-pathogenic asymptomatic variant E. dispar have tended to decrease.