1907 TYZZER, Ernest Edward (1875 – 1965)

A sporozoan found in the peptic glands of the common mouse.

Tyzzer first identified cryptosporidium in mice and named it Cryptosporidium muris, spec. nov. (Thanks to Juan Weiss for this reference and its interpretation.)

GMN 12432 · https://historyofmedicine.com/id/14663

1912 TYZZER, Ernest Edward (1875 – 1965)

Cryptosporidium parvum (sp. nov.) a coccidium found in the small intestine of the common mouse.

Tyzzer described an even smaller species of cryptosporidium, Cryptosporidium parvum (sp. nov.), later recognized as the chief species infecting humans. His paper reproduced color lithographs of all the different life …

GMN 12433 · https://historyofmedicine.com/id/14665

1976 YARDLEY, John Howard (1926 – 2011); NIME, Freda A.; BUREK, Joe D.; ET AL

Acute enterocolitis in a human being infected with the protozoan Cryptosporidium.

First report of infection by Cryptosporidium in a human being. "Abstract "A 3-year-old child with severe acute self-limited enterocolitis was found on rectal biopsy to be infected with the protozoal parasite Cryptospo…

GMN 12434 · https://historyofmedicine.com/id/14666