Fig. 1From: Revisiting the infectivity and pathogenicity of Cryptosporidium avium provides new information on parasitic sites within the hostOocysts in fecal smears showed typical Cryptosporidium characteristics when stained with Modified Ziehl-Neelsen stain (a, ×1000). Oocyst morphology was also observed by differential interference contrast (DIC) microscope (b, ×1000)Back to article page