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Seasonal patterns of Cryptosporidium, Enterocytozoon and Giardia infections in humans. ▲: Chi-square analysis of seasonal differences in the rates of infection by Cryptosporidium: P < 0.05 (P = 0.024); Δ: Chi-square analysis of seasonal differences in the rates of infection by Enterocytozoon: P < 0.0001. ▀: Chi-square analysis of seasonal differences in the rates of infection by Giardia:P > 0.05 (P = 0.123).
