Salmonella enterica serovar Typhi live vector vaccines finally come of age
نویسندگان
چکیده
منابع مشابه
Immunoprotectivity of Salmonella enterica serovar Enteritidis virulence protein, InvH, against Salmonella typhi
Objective(s):Typhoid fever is a dreadful disease of a major threat to public health in developing countries. Vaccination with bacterial immunodominant components such as surface proteins may prove as a potent alternative to live attenuated vaccines. InvH, an important part of needle complex in type three secretion system (TTSS) plays important role in efficient bacterial adherence and entry int...
متن کاملGenotyping of Salmonella enterica serovar Typhi strains
Results Forty representative S. Typhi strains belonged to 4 sequence types (ST1, ST2, ST890, and ST892). The predominant S. Typhi genotype (31/40) was ST2 and it had a diverse geographic distribution. We discovered two novel STs – ST890 and ST892. M-CGH showed that 69 genes in these two novel STs were divergent from S. Typhi Ty2, which belongs to ST1. In addition, 5 representative Typhi strains...
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The generation of complete genome sequences provides a blueprint that facilitates the genetic characterization of pathogens and their hosts. The genome of Salmonella enterica serovar Typhi (S. Typhi) harbors ~5 million base pairs encoding some 4000 genes, of which >200 are functionally inactive. Comparison of S. Typhi isolates from around the world indicates that they are highly related (clonal...
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Nepal is having a series of enteric fever epidemics over the last decade1,2 with changing resistance patterns.3 The fi rst report of multidrug resistant Salmonella enterica serovar Typhi in Nepal was published in 1991.4 In the following years, with the introduction of fl uoroquinolones in the treatment, nalidixic acid-resistant strains associated with reduced susceptibility to fl oroquinolones ...
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We report the emergence in Kenya during 1997-1999 of typhoid fever due to Salmonella enterica serovar Typhi resistant to ampicillin, tetracycline, chloramphenicol, streptomycin, and cotrimoxazole. Genotyping by pulsed-field gel electrophoresis of XbaI-digested chromosomal DNA yielded a single cluster. The multidrug-resistant S. Typhi were related to earlier drug- susceptible isolates but were u...
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ژورنال
عنوان ژورنال: Immunology & Cell Biology
سال: 2009
ISSN: 0818-9641,1440-1711
DOI: 10.1038/icb.2009.31