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Query: UMLS:C0032285 (pneumonia)
 54,520 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A 28 year old veterinary medical student experienced spiking fever, cough, peripheral blood eosinophilia and an eosinophilic pulmonary infiltrate. Corynebacterium pseudotuberculosis was isolated from a transtracheal aspirate and bronchoscopy washings. C. pseudotuberculosis, a pathogen responsible for lymphadenitis in livestock, has never been reported to cause pneumonia in man. In the four cases of C. pseudotuberculosis previously reported, lymphadenitis was the chief clinical presentation. In our patient specific antibodies against the isolated C. pseudotuberculosis developed but not against the other corynebacteria. With erythromycin therapy, the peripheral blood eosinophilia and IgE anti-C. pseudotuberculosis titer decreased whereas the IgG titer continued to increase.
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PMID:Corynebacterium pseudotuberculosis. A new cause of infectious and eosinophilic pneumonia. 46 27

Soluble mediators such as tumor necrosis factor alpha (TNF-alpha) may be important in the pathogenesis of many chronic pulmonary infections. We examined the ability of Corynebacterium pseudotuberculosis, Pasteurella haemolytica, and ovine lentiviruses (OvLV) to induce TNF-alpha secretion by pulmonary alveolar macrophages (PAM). Bronchoalveolar lavage cells, composed of greater than 90% PAM, were obtained from normal sheep. Bronchoalveolar lavage cells were cultured for 2, 24, 48, 72, or 168 h in endotoxin-free RPMI medium (with 10% autologous serum) or in medium containing one of the following additives: lipopolysaccharide, 1-micron polystyrene beads, C. pseudotuberculosis, P. haemolytica, or one of two plaque-cloned OvLV, 85/28 or 85/34. Lipopolysaccharide, C. pseudotuberculosis, and P. haemolytica induced TNF-alpha activity in PAM cultures as early as 2 h after inoculation, as assessed by a colorimetric cytotoxicity assay. This activity could be blocked by rabbit anti-recombinant bovine TNF-alpha serum. In contrast, medium alone, polystyrene beads, and productive infection by OvLV did not induce TNF-alpha activity in PAM cultures. Bacterial pathogens which infect pulmonary macrophages may elicit the secretion of TNF-alpha within the lungs and lead to the cachectic state associated with chronic pneumonia.
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PMID:Differential induction of tumor necrosis factor alpha in ovine pulmonary alveolar macrophages following infection with Corynebacterium pseudotuberculosis, Pasteurella haemolytica, or lentiviruses. 165 61

Three cases of Pasteurella pneumonia in laboratory goats were diagnosed during a 21 month period. Two goats died acutely and a third was euthanized after four weeks of unsuccessful therapy. Pasteurella multocida was isolated from the lung lesions of all three goats. Corynebacterium pseudotuberculosis and Muellerius capillaris also were present in the lungs of the third goat. Pasteurella infections were associated with fibrino-hemorrhagic-necrotizing pleuritis and pneumonia, while lungs superinfected with Corynebacterium also contained microabcesses. The gross and histologic lesions are described and diagnosis, treatment and prevention are discussed.
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PMID:Spontaneous Pasteurella pneumonia in adult laboratory goats complicated by superinfection with Corynebacterium pseudotuberculosis and Muellerius capillaris. 404 53

Yersinia pseudotuberculosis was isolated from placenta and abomasal contents of triplet goat kids, two of which were aborted and one of which died shortly after birth. Necropsy findings in the kids were suppurative placentitis and suppurative pneumonia. The public health implications in intrauterine Yersinia infection in goats are discussed.
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PMID:Abortion and early neonatal death of kids attributed to intrauterine Yersinia pseudotuberculosis infection. 405 3

Antibody to equi factor(s) in cases of Corynebacterium equi pneumonia in foals was detected using C. pseudotuberculosis exotoxin sensitized calf red blood cells. The test was standardized using antitoxin produced in rabbits by injection of equi factor(s). All sera from ten foals with culture-diagnosed C. equi pneumonia had antibodies to equi factor(s) (titre range 8-256, mean 74.0) and nine sera from 11 foals with suspected C. equi pneumonia also showed antibodies (titre range 4-512, mean 136.4). Two of five pneumonia foals with transtracheal aspirate cultures not yielding C. equi had such antibodies. Fifty-eight of 59 control horse sera had no antibodies; the one positive serum came from a foal on a farm where C. equi pneumonia was endemic. By contrast only five of 15 foals with experimentally-induced C. equi pneumonia had antibodies to equi factor(s), probably because the acute nature of the disease produced did not mimic the chronic course of the natural disease. Antibody to equi factor(s) can be used in the diagnosis of naturally-occurring corynebacterial pneumonia in foals.
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PMID:Antibody to equi factor(s) in the diagnosis of Corynebacterium equi pneumonia of foals. 639 41

After decades of confusion about their microbiologic classification and clinical significance, the nondiphtheria corynebacteria have emerged as important pathogens. Although isolation of these organisms may represent contamination with skin flora, several species, including Corynebacterium ulcerans, Corynebacterium pseudotuberculosis (Corynebacterium ovis), Corynebacterium haemolyticum, Corynebacterium pseudodiptheriticum, Corynebacterium equi, Corynebacterium bovis, Corynebacterium xerosis, and corynebacteria of group JK, clearly cause disease in humans. Most of these organisms infect animals, which are the source of human infection with some species. Some nondiptheria species of Corynebacterium produce recognizable clinical syndromes such as granulomatous lymphadenitis, pneumonitis, pharyngitis, cutaneous infections, and, most commonly, endocarditis. Certain species infect healthy hosts, while others predominantly attack immunocompromised individuals. Several species produce toxins, including a diphtheria-like toxin, a dermonecrotic toxin, and a soluble hemolysin. A microbiologic scheme of identification of the genus Corynebacterium and its major defined species is presented.
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PMID:Infections caused by nondiphtheria corynebacteria. 676 Mar 40

Fatal Yersinia pseudotuberculosis infection was diagnosed in 3 bushbabies (Galago crassicaudatus) in a large prosimian colony. The clinical signs were diarrhea, dyspnea, hyperthermia, dehydration, and lethargy. Histologically, the disease was characterized by lesions of ulcerative enterocolitis, necrotizing hepatitis, splenitis, lymphadenitis, and nonsuppurative pneumonitis.
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PMID:Fatal Yersinia pseudotuberculosis infection in captive bushbabies. 700 3

Corynebacterium pseudotuberculosis infection is a common cause of pyogranulomas in ovine lungs and often occurs as a dual infection with lentiviruses. This coinfection usually leads to the development of chronic pneumonia and cachexia that is similar to the clinical syndrome seen in human beings with AIDS-related pneumonias. Recent in vitro studies indicate that monokines such as tumor necrosis factor-alpha (TNF alpha) are induced by C. pseudotuberculosis, suggesting that TNF alpha is involved in the pathogenesis of corynebacterial lesions in vivo. To substantiate in vitro observations concerning bacterial induction of TNF alpha in ovine pulmonary macrophages, immunohistochemical labeling techniques were used in combination with in situ hybridization to identify TNF-producing cells in corynebacterial lesion sites in vivo. TNF alpha message and translation product were found in macrophages comprising pyogranulomas that were induced by naturally acquired and experimental pulmonary C. pseudotuberculosis infections.
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PMID:Local production of tumor necrosis factor-alpha in corynebacterial pulmonary lesions in sheep. 772 1

Plague is a zoonotic infection caused by Yersina pesits, a pleomorphic, gram-negative non-spore-forming coccobacillus that is more accurately classified as a subspecies of Y pseudotuberculosis. Animal reservoirs include rodents, rabbits, and occasionally larger animals. Cats become ill and have spread pneumonic disease to man. Dogs may be a significant sentinel animal as well as a reservoir, although do not usually become ill. Flea bites commonly spread disease to man. Person to person spread has not been a recent feature until the purported outbreak of plague and plague pneumonia in India in 1994. Other factors that increase risk of infection in endemic areas are occupation-veterinarians and assistants, pet ownership, direct animal-reservoir contact especially during the hunting season, living in households with an index case, and, mild winters, cool moist springs, and early summers. Clinical presentations include subclinical plague (positive serology without disease); plague pharyngitis; pestis minor (abortive bubonic plague); bubonic plague; septicemic plague; pneumonic plague; and plague meningitis. Most prominent of plague's differential diagnosis are Reye's syndrome, other causes of lymphadenitis, bacterial pneumonias, tularemia, and acute surgical abdomen. Treatment has reduced mortality from 40-90% to 5-18%. The drug of choice (except for plague meningitis) is streptomycin, with tetracyclines being alternatives. Parenteral cholamphenicol is the treatment of choice for plague meningitis. A tetracycline should be administered as chemoprophylaxis to all contacts over the age of 8 years. Plague vaccine is available, but is only partially protective.
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PMID:Plague pneumonia disease caused by Yersinia pestis. 909 71

In the springtime of 1995, 10 per cent of foals at a stud-farm died due to suppurative lesions. Three dead foals were examined. The manifestations of watery diarrhoea and pneumonia were observed. A profuse growth of an enterotoxigenic strain of Yersinia pseudotuberculosis was obtained from the internal organs of the foals. The foals with clinical symptoms of pneumonia and watery diarrhoea were immunized with Propionibacterium acnes t. II. All mares and their offspring from the stud were treated with an immunomodulator (Propionibacterium acnes t. II) and then vaccinated with a formalin-inactivated culture of Yersinia pseudotuberculosis.
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PMID:An outbreak of foal yersiniosis in Poland: pathological and bacteriological examination. 944 Feb 4


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