Bruce C.
Anderson, DVM, PhD, Emeritus 2005 Retired
Education
PhD--1977, University of California, Davis
BS and DVM--1961-65, University of California, Davis
AA--1961, Long Beach City College
1990-2001, Director, Caine Veterinary Teaching Center
Professional Experience
1984-2005: Professor, Veterinary Pathology, Caine Veterinary
Teaching Center, University of Idaho, Caldwell
1978-1984: Associate Professor, Veterinary Pathology, Caine Veterinary
Teaching Center, University of Idaho, Caldwell
1976-1977: Researcher, Viral Carcinogenesis, University of California,
Davis
1974-1976: Resident, Comparative Pathology, University of California,
Davis
Research Program
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.
 Acid fast stained fecal smear showing 6 micron diameter Crypto
oocysts.
 Spherical oocysts of Cryptosporidium parvum, fecal flotation in
sugar solution.
In terms of
perspective, we were able to show that almost every calf in the world
contracted the cryptosporidial infection in the second week of life,
but that for a calf that was otherwise healthy, well-fed and
unstressed, the disease was no more than a minor inconvenience. In
many presentations and publications, I’ve helped to put into
perspective the significance of cryptosporidiosis on human and animal
health.
In the mid-80’s,
I discovered a cause of subpar performance in feeder cattle,
Cryptosporidium muris infection of the stomach lining of cattle,
often a life-long infection. My subsequent national survey showed that
C. muris, of cattle, now renamed Cryptosporidium andersoni,
was ubiquitous among beef and dairy cattle populations.
Brain parts
suitable for any diagnostic analytical procedure are quickly "spooned"
out and evaluated in a variety of ways to arrive at a diagnosis.
Abstracts and Articles Online
Cryptosporidiosis in Bovine and Human Health
Cryptosporidium muris: Prevalence, Persistency, and Detrimental Effect on
Milk Production in a Drylot Dairy
Identification of outer oocyst wall proteins of three Cryptosporidium
(Apicomplexa: Cryptosporidiidae) species by 125I surface labeling.
Cryptosporidium andersoni n. sp. (Apicomplexa: Cryptosporiidae) from
Cattle, Bos taurus
article is
dedicated to Dr. Anderson
Haemophilus somnus (Histophilus somni) in bighorn sheep
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