Merck Manual

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Eimeria zuernii oocysts, fecal smear, calf
eimeria-zuernii-oocysts-fecal-smear-andrews-sized
Eimeria zuernii oocysts, fecal smear, calf

    Photomicrograph of oocysts of Eimeria zuernii in a fecal smear from a calf.

Courtesy of Dr. Sameeh M. Abutarbush.