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Rhodococcus Equi Pneumonia (Rhodococcu + equi_pneumonia)
Selected AbstractsIs Fatal Rhodococcus equi Pneumonia of Foals Only an Infection Acquired by the Perinate?JOURNAL OF VETERINARY INTERNAL MEDICINE, Issue 3 2001K. Hooper-McGrevy MSc No abstract is available for this article. [source] Application of Sartwell's Model (Lognormal Distribution of Incubation Periods) to Age at Onset and Age at Death of Foals with Rhodococcus equi Pneumonia as Evidence of Perinatal InfectionJOURNAL OF VETERINARY INTERNAL MEDICINE, Issue 3 2001Miriam L. Horowitz The distributions of the incubation periods for infectious and neoplastic diseases originating from point-source exposures, and for genetic diseases, follow a lognormal distribution (Sartwell's model). Conversely, incubation periods in propagated outbreaks and diseases with strong environmental components do not follow a lognormal distribution. In this study Sartwell's model was applied to the age at onset and age at death of foals with Rhodococcus equi pneumonia. The age at onset of clinical signs and age at death were compiled for 107 foals that had been diagnosed with R equi pneumonia at breeding farms in Argentina and Japan. For each outcome (disease and death), these data followed a lognormal distribution. A group of 115 foals with colic from the University of California were used as a comparison group. The age at onset of clinical signs for these foals did not follow a lognormal distribution. These results were consistent with the hypothesis that foals are infected with R equi during the 1st several days of life, similar to a point-source exposure. [source] Rhodococcus equi pneumonia in an adult horseEQUINE VETERINARY EDUCATION, Issue 2 2008B. M. Waldridge Summary A 20-year-old, Thoroughbred mare in the fifth month of gestation was examined for weight loss, pyrexia and lethargy. Physical examination, ultrasonography and radiography revealed a severe abscessing pneumonia and a dead fetus. The mare did not respond to symptomatic treatment and died suddenly. Necropsy revealed multifocal pulmonary abscessation. Rhodococcus equi was isolated from the lungs, liver and kidneys. Specific immune function of the mare and presence of the virulence associated protein A (VapA) of the R. equi isolated was not determined. It is likely that immunosuppression is required for systemic R. equi infections in adult horses; however, it is unknown if VapA is necessary to produce disease in adult horses. [source] Application of Sartwell's Model (Lognormal Distribution of Incubation Periods) to Age at Onset and Age at Death of Foals with Rhodococcus equi Pneumonia as Evidence of Perinatal InfectionJOURNAL OF VETERINARY INTERNAL MEDICINE, Issue 3 2001Miriam L. Horowitz The distributions of the incubation periods for infectious and neoplastic diseases originating from point-source exposures, and for genetic diseases, follow a lognormal distribution (Sartwell's model). Conversely, incubation periods in propagated outbreaks and diseases with strong environmental components do not follow a lognormal distribution. In this study Sartwell's model was applied to the age at onset and age at death of foals with Rhodococcus equi pneumonia. The age at onset of clinical signs and age at death were compiled for 107 foals that had been diagnosed with R equi pneumonia at breeding farms in Argentina and Japan. For each outcome (disease and death), these data followed a lognormal distribution. A group of 115 foals with colic from the University of California were used as a comparison group. The age at onset of clinical signs for these foals did not follow a lognormal distribution. These results were consistent with the hypothesis that foals are infected with R equi during the 1st several days of life, similar to a point-source exposure. [source] | ||||||||||