epizootiology
National Institutes of Health
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Whirling disease, caused by the myxozoan parasite Myxobolus cerebralis, remains a health threat to salmonid fish in the western…
Both the prevalence and tissue titer of viral hemorrhagic septicemia virus (VHSV) increased in Pacific herring Clupea pallasi…
Passerine birds within two California (USA) coastal scrub ecosystems, an island and a mainland site, were examined for hematozoa…
A total of 2,167 individuals representing 15 species of wading birds was examined for infection with the nematode Eustrongylides…
The thyroid glands of coho salmon collected at different stages of their anadromous migration exhibited progressive and extensive…
SUMMARY The pathogenicity of two bovine field strains of virus for indigenous goats was examined in the laboratory. The goats…
INTRODUCTION The history of fish diseases in western United States shows an increasing awareness tha t viruses could cause…