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 59,461 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Over a period of 60 months 137 cases of intestinal and extra-intestinal salmonellosis were registered in the microbiology department of the Ivrea-Castellamonte hospital. The authors conducted a retrospective study relative to the extra-intestinal salmonellosis manifested in elderly patients. In order to carry out such a study the authors considered only patients who were in the hospital, who were over the age of 65, and who had a clinical history different from the usual one of gastroenterocolitis. Out of 61 patients who were in hospital 50 were with complete registration data; 9 (18%) were over 65 years of age. The analysis of the clinical cards permitted the identification of 4 cases with unusual clinical histories due to the presence of serious systemic complications (sepsis with prolonged fever and positive blood cultures) or focal infections in extra-intestinal tissues (abscess of soft tissues, osteomyelitis). The authors focused their attention on these and described the general clinical characteristics of each patient, the type and the position of the isolated microorganism, the manifestations or extra-intestinal complications of the infection and the predisposing factors regarding the same complications. For each patient the essential clinical history and the treatment of the disease have been described. The authors conclude by affirming that in the cases of elderly patients with salmonellosis, apart from those infections in positions different from intestinal one, it would be opportune to consider an antimicrobe treatment also for enteritis infections and cases of asymptomatic infection.
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PMID:[Bacteremia and localized suppurative Salmonella non-typhi infections in the elderly: a study of 4 cases observed at the Ivrea-Castellamonte Hospital]. 184 23

Many discriminative experimental animal models of infection have been utilized in the evaluation of newer fluoroquinolones. In vivo efficacy of many of the newer agents has been shown in experimental models of meningitis, endocarditis, pneumonia, urinary tract infections, pyelonephritis, osteomyelitis, abscesses of various types, septic arthritis, gastroenteritis, salmonellosis, listeriosis, tuberculosis, syphilis, sinusitis, prostatitis and burn wound sepsis, among others. This review focuses on recent developments in a few selected areas. Although the limitations of animal model studies are well described, these results provide a rationale for the appropriate clinical usage of the newer fluoroquinolones in humans.
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PMID:Evaluation of quinolones in experimental animal models of infections. 186 88

This working party was convened by the organizers of the World Congresses of Gastroenterology, Sydney 1990. Its remit was to produce a report on disinfection in endoscopy. Endoscopy plays an essential role in the management of gastrointestinal disorders; its benefits far outweigh the occasional complications which arise. Nevertheless, case reports and surveys performed over a 20-year period confirm that endoscopic procedures do occasionally cause cross-infection and the current epidemic with human immunodeficiency virus (HIV) has highlighted the potential for more serious disease transmission if suitable precautionary measures are not generally applied in endoscopy practice. Contaminated equipment may cause infection in three ways: transmission of pathogenic organisms from one patient to another, the commonest example being Salmonellosis; transmission of infection such as hepatitis B (HBV) from patient to staff by needle-stick injury; and introduction of opportunistic organisms which colonize endoscopic and ancillary equipment on storage. This may cause focal sepsis or septicaemia, particularly in the immunocompromised, or cholangitis and pancreatic sepsis following endoscopic retrograde cholangiopancreatography (ERCP). These risks can be eliminated by the use of effective cleaning and disinfection techniques, by providing suitable staff training and by paying attention to endoscopy room procedures. Both HBV and HIV are inactivated by all currently accepted disinfecting or sterilizing procedures.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Disinfection and endoscopy: summary and recommendations. Working party report to the World Congresses of Gastroenterology, Sydney 1990. 188 72

An outbreak of salmonellosis in foals occurred on a large Thoroughbred farm in California. Only foals less than 8 days of age exhibited clinical signs, which included depression, anorexia, and diarrhea. Three foals died from septicemia. The agent responsible was Salmonella ohio, which is rarely involved in salmonellosis in horses. During the course of the outbreak, S. ohio was isolated from 27 of 97 mares (27.8%) and 34 of 97 foals (35.1%). Mares were the presumed source of infection for foals. The absence of clinical signs in mares allowed for increased exposure of foals through environmental contamination. Although foals continued to become infected after strict control measures were adopted, none became ill. Salmonella serotypes of seemingly low virulence can produce serious disease outbreaks.
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PMID:An outbreak of equine neonatal salmonellosis. 191 93

The seroprevalence, clinical epidemiology, modes of transmission, clinical presentation in adults, pregnancy women and children, diagnosis, impact and control strategies of AIDS in Africa are covered in this review. HIV-1, the causative virus in AIDS, is epidemic in a central Africa belt from Gabon to the east coast, and from Uganda to Zimbabwe, with the highest prevalence in the lakes and highlands of Central Africa. HIV-2 causes a milder disease in Western Africa centered in Senegal. HIV infections occur primarily in young adult men aged 30-34, women aged 20-24, infants and children under 4, and a few girls. Transmission patterns vary widely depending on sexual customs in the ethnically diverse continent. Prevalence tends to be high in cities and among subgroups such as prostitutes, where promiscuity is restricted. Where female sexual permissiveness exists, seropositivity is high in women generally. Besides sexual behavior, risk factors for HIV in Africa also include uncircumcised man, oral contraception, STDs causing genital ulceration and Chlamydia infection. Transmission to neonates occurs, especially if the mother has advanced AIDS, but transmission by breast milk is uncertain. Transmission by blood transfusion is common because transfusion are up to 10 times as common in Africa as in the West, especially in obstetrics and pediatrics. Clinically, HIV infections present as herpes zoster in 95% of Africans, and commonly as slim disease: weakness, fever, chronic watery diarrhea and weight loss of unknown cause. Associated infection are candidiasis, cryptosporidiosis, isosporiasis, tuberculosis and salmonellosis. Other presenting symptoms are unusual sites of lymphadenopathy, cough and sepsis. Diagnosis can be made by the WHO clinical case definition, or be screening tests, which are now more reliable for African patients than formerly. In Africa, AIDS can cause destitution and disgrace for families, and will probable severely affect progress made national economies because of deaths of young productive adults. Strategies for control of HIV in Africa are outlined.
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PMID:AIDS in Africa. 218 39

Gentamicin sulfate was encapsulated in liposomes composed solely of egg phosphatidylcholine and administered via intravenous injection to rats and mice. The total gentamicin activity (regardless of whether it was free or liposome associated) in serum and selected tissues was determined for 24 h (serum) or up to 15 weeks (tissues) by using a microbiological assay. The mean half-lives in serum of a single 20-mg/kg dose of free (nonencapsulated) gentamicin in mice and rats were estimated to be 1.0 and 0.6 h, respectively, whereas a similar dose of encapsulated drug had apparent mean half-lives of 3.8 h in mice and 4.0 h in rats. In both species, the apparent half-life in serum of the liposomal formulation increased as the dose increased. Liposome encapsulation resulted in higher and more prolonged activity in organs rich in reticuloendothelial cells (especially spleen and liver). In acute septicemia infections in mice, the liposomal formulation showed enhanced prophylactic activity (as determined by calculation of the 50% protective dose). In a model of murine salmonellosis, liposomal gentamicin greatly enhanced survival when given as a single dose (10 mg/kg) at 1 or 2 days after infection as well as up to 7 days before infection.
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PMID:Pharmacokinetics and in vivo activity of liposome-encapsulated gentamicin. 218 15

The in vivo effects of a single prophylactic dose of recombinant bovine interferon (rBoIFN)-alpha I1 in calves with salmonellosis were investigated, using a Salmonella typhimurium infection model. Treatment with rBoIFN-alpha I1 reduced the degree of septicemia compared with that in control groups, and, in one experiment, using disease of reduced severity, body temperature was lower in treated calves than in controls.
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PMID:Prophylactic effects of recombinant bovine interferon-alpha I1 on acute Salmonella typhimurium infection in calves. 220 41

Recurrent nontyphoid salmonella septicemia is one of the opportunistic infections characteristic of AIDS. The increased incidence of severe salmonellosis in immunocompromised patients is due, in part, to defective cellular immunity. The literature contains reports of nine cases of extraintestinal Salmonella arizonae infections in patients ingesting rattlesnake capsules, all of whom had known underlying medical illnesses. We describe a previously healthy Hispanic man who developed S. arizonae bacteremia as his initial manifestation of infection with the human immunodeficiency virus (HIV). The patient ultimately stated that he had consumed rattlesnake meat for medicinal purposes--a relatively common practice among Hispanics. S. arizonae was cultured from the powder of all capsules remaining in his possession. To our knowledge, this represents the first reported case of S. arizonae bacteremia as the presenting manifestation of HIV infection following the ingestion of capsules containing rattlesnake meat.
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PMID:Salmonella arizonae bacteremia as the presenting manifestation of human immunodeficiency virus infection following rattlesnake meat ingestion. 235 9

There exists high incidence of bacteremia, sepsis and meningitis in young infants with Salmonella infection. However, focal intracranial abscesses due to Salmonella infections are rare. We reported a 2-month-old male baby presenting salmonella infection with brain abscess and purpura fulminans. The patient's clinical course was fulminant. He was admitted due to fever, irritability, anemia and leukopenia. He developed cardiac arrest, shock and skin diathesis on his second hospitalization day. After resuscitation he became comatous and showed acrocyanosis and gangrenous skin over the hands, feet and left ear lobe. Both blood and cerebrospinal fluid cultures were Salmonella Group B. The patient got worse rapidly in spite of vigorous treatment. Subdural empyema, ventriculitis and later brain abscess were detected by serial brain sonograms. He died of central nervous system failure, gastrointestinal bleeding and renal failure on the eighteenth hospitalization day.
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PMID:Salmonella meningitis complicated with subdural empyema, brain abscess and purpura fulminans: report of one case. 257 4

The newborn with sepsis (E. coli) and salmonellosis was described. After treatment with broad-spectrum antibiotics it was suffered from Candida albicans (Meningitis with Hydrocephalus internus, Chorioretinitis and Ostitis). The authors difficulties connected with diagnosis and anti-fungal therapy have showed. They have punctated the necessity of combined anti-mycotic therapy.
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PMID:[Systemic candidiasis with meningeal involvement in a newborn infant]. 262 60


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