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Full-Text Articles in Veterinary Infectious Diseases
House Finch Populations Differ In Early Inflammatory Signaling And Pathogen Tolerance At The Peak Of Mycoplasma Gallisepticum Infection, James S. Adelman, Laila Kirkpatrick, Jessica L. Grodio, Dana M. Hawley
House Finch Populations Differ In Early Inflammatory Signaling And Pathogen Tolerance At The Peak Of Mycoplasma Gallisepticum Infection, James S. Adelman, Laila Kirkpatrick, Jessica L. Grodio, Dana M. Hawley
James S. Adelman
Host individuals and populations often vary in their responses to infection, with direct consequences for pathogen spread and evolution. While considerable work has focused on the mechanisms underlying differences in resistance—the ability to kill pathogens— we know little about the mechanisms underlying tolerance— the ability to minimize fitness losses per unit pathogen. Here, we examine patterns and mechanisms of tolerance between two populations of house finches (Haemorhous [formerly Carpodacus] mexicanus) with different histories with the bacterial pathogen Mycoplasma gallisepticum (MG). After infection in a common environment, we assessed two metrics of pathology, mass loss and eye lesion severity, as proxies …
Characterization Of A Piscirickettsiosis-Like Disease In Hawaiian Tilapia., M. J. Mauel, Debra L. Miller, K. Frazier, A. Liggett, E. Styer, D. Montgomery-Brock, J. Brock
Characterization Of A Piscirickettsiosis-Like Disease In Hawaiian Tilapia., M. J. Mauel, Debra L. Miller, K. Frazier, A. Liggett, E. Styer, D. Montgomery-Brock, J. Brock
Debra L Miller
In 1994, tilapia (Oreochromis mossambicus and Sarotherodon melanotheron) in wild and farmed populations on Oahu, Hawaii, USA, began to die of an unknown disease that was similar but not identical to piscirickettsiosis in salmonids. Only tilapia were affected. Diseased tilapia often swam erratically and had trouble staying at depth. Scattered cutaneous haemorrhage and exophthalmia were often noted. In many cases, fish were found dead with no clinical signs. Gills exhibited epithelial hyperplasia with severe multifocal consolidation of secondary lamellae. Multiple granulomas were observed in the gills, spleen, kidney, choroid gland and testes, but not in the liver. Tilapia mortalities occurred …