salmonella infections/fiebre

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Absence of all components of the flagellar export and synthesis machinery differentially alters virulence of Salmonella enterica serovar Typhimurium in models of typhoid fever, survival in macrophages, tissue culture invasiveness, and calf enterocolitis.

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In this study, we constructed an flhD (the master flagellar regulator gene) mutant of Salmonella enterica serovar Typhimurium and compared the virulence of the strain to that of the wild-type strain in a series of assays that included the mouse model of typhoid fever, the mouse macrophage survival

[Persistent fever in a patient with Salmonella typhimurium gonarthritis].

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A 65-year-old patient with systemic lupus erythematodes (SLE) developed fever and gonarthritis whilst taking prednisone and hydrochloroquine. Salmonella typhimurium, sensitive to amoxicillin, was grown in cultures of synovial fluid, blood and urine. After high dosages of intravenous amoxicillin,

Salmonella enterica serovar Typhi O:1,9,12 polysaccharide-protein conjugate as a diagnostic tool for typhoid fever.

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Serologic tests play an important role in diagnosis of typhoid fever. In an effort to develop a more defined reagent for these tests, purified Salmonella enterica serovar Typhi (ST) O:1,9,12 polysaccharide was conjugated to human serum albumin (HSA), and the conjugate was purified

Emerging enteric fever due to switching biotype of Salmonella (paratyphi A) in Eastern Odisha.

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BACKGROUND Typhoid fever is classically caused by Salmonella enterica serotype typhi.Recently the frequency of isolation of S. paratyphi A (SPA) has been increased in comparison to S. typhi in Indian scenario. OBJECTIVE To observe the rate of isolation and antimicrobial susceptibility pattern of SPA

Slide coagglutination for Salmonella typhi antigens in broths inoculated with feces from typhoid fever patients.

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Salmonella typhi antigens D, Vi and d were readily detected, by slide coagglutination, in mannitol selenite (MSB) and dulcitol selenite (DSB), Salmonella enrichment broths 4 hours after inoculation with feces from 60 patients with bacteriologically confirmed typhoid fever. Positive coagglutination

Bacteremia caused by a lactose-fermenting, multiply resistant Salmonella typhi strain in a patient recovering from typhoid fever.

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A female patient suffered a typical attack of typhoid fever due to a lactose-negative, fully susceptible Salmonella typhi strain. During convalescence she became febrile, and a lactose-fermenting S. typhi strain resistant to ampicillin, chloramphenicol, tetracycline, and trimethoprim was isolated

Molecular characterization of a conjugative R-lac plasmid in Salmonella typhi isolated from a patient with typhoid fever.

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In a strain of Salmonella typhi isolated from a patient with post-operative typhoid fever, a 217-Kb conjugative plasmid has been detected which codes for lactose fermentation and drug resistance to sulphonamides (SA), chloramphenicol (CP), ampicillin (AP), kanamycin (KM) and trimethoprim (TP). The

Outbreak of enteric fever due to Salmonella Paratyphi A variety durazzo (2,12:a:-) in a hilly region of North India: A report of 43 cases.

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Enteric fever due to Salmonella Paratyphi A (SPA) is a global problem occurring as outbreaks at times. An unusual SPA (2,12:a:-) variety durazzo has been reported rarely. We report an outbreak of enteric fever due to this variety affecting 43 individuals. The blood samples grew unusual mucoid,

M-01ZH09, an oral live attenuated Salmonella enterica serovar Typhi vaccine for the prevention of typhoid fever.

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Typhoid fever remains a major health problem globally, particularly in the developing world. The increased emergence of several multidrug-resistant strains of Salmonella enterica serovar Typhi has made the management of the disease increasingly difficult. Although vaccines against typhoid fever are

Duodenal isolation of Salmonella typhi by string capsule in acute typhoid fever.

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Three of seven volunteers with acute typhoid fever had Salmonella typhi isolated from the duodenum using a string capsule device. The string capsule device provides a simple method for culturing S. typhi from the duodenal contents. Its possible use in typhoid carriers is discussed.

Evaluation of the response of human humoral antibodies to Salmonella typhi lipopolysaccharide in an area of endemic typhoid fever.

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Because of the limited value of Widal's test in the diagnosis of typhoid fever in areas of endemicity, individual serum levels of IgM, IgA, IgG, and IgG subclass antibodies to Salmonella typhi lipopolysaccharide were evaluated in samples collected in Egypt. The study involved 106 febrile patients,

phoP/phoQ-deleted Salmonella typhi (Ty800) is a safe and immunogenic single-dose typhoid fever vaccine in volunteers.

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The phoP/phoQ virulence regulatory genes of Salmonella typhi Ty2 were deleted, and the resultant strain (Ty800) was tested as a live attenuated typhoid fever vaccine in human volunteers. Groups of 2 or 3 subjects received single oral doses of 10(7), 10(8), 10(9), or 10(10) cfu. Two volunteers who

mig-14 is a horizontally acquired, host-induced gene required for salmonella enterica lethal infection in the murine model of typhoid fever.

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We have characterized a host-induced virulence gene, mig-14, that is required for fatal infection in the mouse model of enteric fever. mig-14 is present in all Salmonella enterica subspecies I serovars and maps to a region of the chromosome that appears to have been acquired by horizontal

Studies of safety, infectivity and immunogenicity of a new temperature-sensitive (ts) 51-1 strain of Salmonella typhi as a new live oral typhoid fever vaccine candidate.

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This report describes the results of a phase 1 study evaluating the safety, infectivity, and immunogenicity of a new live oral Salmonella typhi temperature-sensitive (ts) 51-1 typhoid fever vaccine in the human. Three normal male subjects aged 23-32 years received three oral doses of S. typhi ts

Results of Salmonella typhi culture in patients with suspected typhoid fever, treated in the Department of Child Health Medical School, Padjadjaran University, Hasan Sadikin General Hospital Bandung.

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From October to December 1984, examination has been carried out on Salmonella-typhi cultures from blood, bone marrow, faeces and urine of 43 patients suffering from suspected typhoid fever treated in the Department of Child Health, Medical School/Hasan Sadikin General Hospital, Bandung. It was

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