Publications

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isolation and characterization of two parasitic protozoa from a pacific harbor seal (phoca vitulina richardsi) with meningoencephalomyelitis.two species of protozoans were isolated from a harbor seal with fatal meninogoencephalitis. serologic reactivity was detected to both sarcocystis neurona and toxoplasma gondii. parasites associated with brain inflammation and necrosis reacted only with immunohistochemical stains utilizing polyclonal antisera raised against sarcocystis neurona. however, 2 distinct parasites were observed in cell cultures derived from the seal's brain tissue. these parasites were separated by mouse passage and lim ...200111534647
meningoencephalitis associated with an unidentified apicomplexan protozoan in a pacific harbor seal.a pacific harbor seal (phoca vitulina richardsii) was found on the central california coast with neurologic signs and labored breathing, which were unresponsive to treatment. necropsy revealed a nonsuppurative necrotizing meningoencephalitis, a multilocular thymic cyst, and nonsuppurative cystitis and renal pyelitis. microscopic examination revealed protozoans in the brain, thymic cyst, and bladder mucosa. ultrastructurally, the protozoal tachyzoites were different from those of neospora caninum ...200314533706
infectious disease and toxicological monitoring of stranded pacific harbor seals (phoca vitulina richardsi) in cook inlet as surrogates for monitoring endangered belugas (delphinapterus leucas).pacific harbor seals ( phoca vitulina richardsi) and belugas ( delphinapterus leucas ) eat many of the same prey species, occupy the same geographic area, and demonstrate site fidelity in cook inlet, alaska. although most direct research involving the critically endangered belugas is currently prohibited, studying harbor seals may provide important information about this beluga population. in recent years, harbor seal populations in alaska have declined for unknown reasons. as part of its strand ...201627691941
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