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Bruce Anderson
With the discovery of the intestinal parasite,
Cryptosporidium parvum in diarrheic calves, lambs and veterinary students,
in the late 70’s my research program in cryptosporidial disease was
launched. The decade of the 80’s was dedicated to research on characterization,
diagnosis, treatment and prevention of the disease. The biggest contributions
came in educating human and veterinary medical diagnosticians in the diagnostic
methods, and in putting the disease in perspective. The photograph below
depicts a simple diagnostic tool, the acid-fast stain of a fecal smear
with the very red, cryptosporidial oocysts. Below that is a collection
of oocysts isolated using the fecal flotation tool; we were first to demonstrate
these oocysts using this common laboratory tool.
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Marie
Bulgin
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James
England
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Alton
Ward
Dr.
Al
Ward
in the bacteriology laboratory.
Dr.
Ward
continues to contribute significantly to the investigation of important
questions about the survival and health of Bighorn Sheep populations
throughout the western
United States
. Years ago, wildlife
specialists believed that the fatal lung infections (acute pneumonia
caused by Pasteurella-type bacteria) that afflicted Bighorn Sheep
were caused only by contact with domestic sheep grazing on public lands.
At stake were whole populations of these magnificent animals, but
also the economical well-being, even the survival of segments of the
domestic sheep industry in the western
United States
.
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