Evaluation of antigenic variations between two virulent toxoplasma strains

Allelic variations between vaccine strains and circulating strains in pxtP of Bordetella pertussis in Iran

Introduction: Despite high level of vaccination against pertussis‚ whooping cough has re-emerged as a health threat, especially in infants. This could be related to expansion of Bordetella pertussis with novel alleles for virulence factors including the pertussis toxin promoter, ptxP3. Compared to ptxp1 strains‚ ptxp3 strains produce more pertussis toxin which results in immune supp...

Comparative proteomic analysis of virulent and avirulent strains of Toxoplasma gondii reveals strain-specific patterns

Research exploring the proteome of Toxoplasma gondii oocysts has gained momentum over the past few years. However, little is known about the oocyst's protein repertoires that contribute to differential virulence among T. gondii strains. Here, we used isobaric tag for relative and absolute quantitation-based proteomic analysis of oocysts of two T. gondii strains exhibiting the virulent PYS (Toxo...

a cross-comparative dtudy between two textbook series in terms of the presentation of politeness

چکیده ندارد.

Antigenic variation between rabies virus strains and its relevance in vaccine production and potency testing

Antigenic and genotypic relationships between Bartonella henselae strains.

The ubiquitous feline intraerythrocytic pathogen Bartonella henselae causes a range of important human infections, and seroprevalence in blood donors in Australia is around 5% (6). Two antigenically distinct subtypes have been described, named for the type strain (Houston-1) and the more recently recognized Marseille strain (5), which have characteristic DNA sequences in the 16S rRNA gene (rDNA...