Rhodococcus species fatal infection in an immunocompetent host. 1993

R P Spark, and M M McNeil, and J M Brown, and B A Lasker, and M A Montano, and M D Garfield
Department of Pathology, Tucson Medical Center, University of Arizona College of Medicine 85733.

A 24-year-old woman had fatal pneumonia-associated adult respiratory distress syndrome caused by Rhodococcus species. Histological examination of lung biopsy tissue showed intracellular coccobacillary microorganisms. Antimicrobial susceptibility tests on the patient's blood isolate showed that it was resistant to clindamycin and norfloxacin but susceptible to several other antimicrobial agents. Also, the isolate's biochemical reactions and pattern of RNA gene-containing restriction fragments were significantly different from those of the 20 recognized Rhodococcus species, suggesting that this patient's infection was caused by an as yet uncharacterized Rhodococcus species. Of the 17 human cases of nonequi Rhodococcus species infection reported to date (including the current case), nine patients were immunocompetent, five had disseminated infection, and four died. Further studies will be required to unequivocally establish the species status of this patient's Rhodococcus isolate biochemically and genetically.

UI MeSH Term Description Entries
D007121 Immunocompetence The ability of lymphoid cells to mount a humoral or cellular immune response when challenged by antigen. Competence, Immunologic,Immunologic Competence,Immunological Competence,Competence, Immunological
D007223 Infant A child between 1 and 23 months of age. Infants
D008168 Lung Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood. Lungs
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D012128 Respiratory Distress Syndrome A syndrome characterized by progressive life-threatening RESPIRATORY INSUFFICIENCY in the absence of known LUNG DISEASES, usually following a systemic insult such as surgery or major TRAUMA. ARDS, Human,Acute Respiratory Distress Syndrome,Adult Respiratory Distress Syndrome,Pediatric Respiratory Distress Syndrome,Respiratory Distress Syndrome, Acute,Respiratory Distress Syndrome, Adult,Respiratory Distress Syndrome, Pediatric,Shock Lung,Distress Syndrome, Respiratory,Distress Syndromes, Respiratory,Human ARDS,Lung, Shock,Respiratory Distress Syndromes,Syndrome, Respiratory Distress
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D002675 Child, Preschool A child between the ages of 2 and 5. Children, Preschool,Preschool Child,Preschool Children
D002851 Chromatography, High Pressure Liquid Liquid chromatographic techniques which feature high inlet pressures, high sensitivity, and high speed. Chromatography, High Performance Liquid,Chromatography, High Speed Liquid,Chromatography, Liquid, High Pressure,HPLC,High Performance Liquid Chromatography,High-Performance Liquid Chromatography,UPLC,Ultra Performance Liquid Chromatography,Chromatography, High-Performance Liquid,High-Performance Liquid Chromatographies,Liquid Chromatography, High-Performance
D004269 DNA, Bacterial Deoxyribonucleic acid that makes up the genetic material of bacteria. Bacterial DNA

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