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Cryptosporidium parvum oocysts, fecal smear
<i >Cryptosporidium parvum </i> oocysts, fecal smear
Cryptosporidium parvum oocysts, fecal smear

Cryptosporidium parvum oocysts (red spherules) in a Ziehl-Neelsen–stained fecal smear.

Courtesy of Dr. William Harold Witola.