Figure 2

Age distribution of Cryptosporidium -, Enterocytozoon - and Giardia -positive patients in Shanghai, China. : total number of patients investigated in different months; : positive cases of Cryptosporidium; (dark gray square): Enterocytozoon-positive cases; (light gray square): positive cases of Giardia; ^*Chi-square analysis of age differences in the rates of infection by the three parasites: P > 0.05.