نتایج جستجو برای: typhoid
تعداد نتایج: 5826 فیلتر نتایج به سال:
Typhoid vaccination is recommended in the United States before travel to countries where typhoid fever is endemic, though little information is available on its effectiveness in travelers. We estimated typhoid vaccination effectiveness (VE) by comparing vaccination status in cases of typhoid fever and paratyphoid fever (Salmonella Paratyphi A infection, against which typhoid vaccine offers no p...
245 patients with typhoid fever were admitted in university of isfahan medical centers during the last 4 years are reported here in this study. the diagnosis was confirmed in each case by the history of the exposure physical examination, widal seroreaction and blood culture test. the highest incidence of the disease occurred between 10-19 years of age, and mostly in summer months, during june, ...
Salmonella Typhi is the causative agent of typhoid. Typhoid is diagnosed by blood culture, a method that lacks sensitivity, portability and speed. We have previously shown that specific metabolomic profiles can be detected in the blood of typhoid patients from Nepal (Näsström et al., 2014). Here, we performed mass spectrometry on plasma from Bangladeshi and Senegalese patients with culture conf...
Background and Objective: The diagnosis of typhoid fever in children is a challenge due to the non-specific clinical picture. The current role of the Widal test for diagnosis in developing countries has not been clear. Materials and Methods: Charts were reviewed on all children ≤ 15 years of age discharg...
This paper analyses how the Colombian medical elites made sense of typhoid fever before and during the inception of bacteriological ideas and practices in the second half of the nineteenth century. Assuming that the identity of typhoid fever has to be understood within the broader concerns of the medical community in question, I show how doctors first identified Bogotá's epidemics as typhoid fe...
Salmonella Typhi is an exclusive human pathogen that causes typhoid fever. Typhoid toxin is a S. Typhi virulence factor that can reproduce most of the typhoid fever symptoms in experimental animals. Toxicity depends on toxin binding to terminally sialylated glycans on surface glycoproteins. Human glycans are unusual because of the lack of CMAH, which in other mammals converts N-acetylneuraminic...
Liver involvement in typhoid fever is uncommon. Typhoid hepatitis is now being recognized as a definite entity. Over a period of 4 years, we have observed 10 cases (4.8%) of typhoid hepatitis out of 210 cases of typhoid fever. Jaundice, anaemia, hepatomegaly and abnormal biochemical tests were present in all cases. Liver biopsy was done in 8 cases and was found to be abnormal in 5. Two of the 1...
Typhoid fever is a major health problem in many developing countries and its clinical features are similar to other types of bacterial enterocolitis. Definitive diagnosis by blood culture requires several days and is often unfeasible to perform in developing countries. More efficient and rapid diagnostic methods for typhoid are needed. We compared the pathological changes in the bowel and adjac...
BACKGROUND Upcoming vaccination efforts against typhoid fever require an assessment of the baseline burden of disease in countries at risk. There are no typhoid incidence data from most low- and middle-income countries (LMICs), so model-based estimates offer insights for decision-makers in the absence of readily available data. METHODS We developed a mixed-effects model fit to data from 32 po...
BACKGROUND Modeling of the transmission dynamics of typhoid allows for an evaluation of the potential direct and indirect effects of vaccination; however, relevant typhoid models rooted in data have rarely been deployed. METHODOLOGY/PRINCIPAL FINDINGS We developed a parsimonious age-structured model describing the natural history and immunity to typhoid infection. The model was fit to data on...
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