Sentence examples for heightened virulence from inspiring English sources

Molecular typing of SDSE, as provided in this report, provides a framework upon which the question of whether or not subpopulations of SDSE strains have heightened virulence can be addressed.

As antibiotic treatment can select for resistant bacteria and mutator alleles leading to increased virulence [ 15] and isolates from super-shedders may also have heightened virulence, antimicrobial resistance (AMR) profiles were also compared in isolates of E. coli O157 H7 from super- and low-shedder pen mates.

Heightened virulence is associated with the ability to acquire host iron.

Genome comparisons were performed between the serotype 1 isolates in order to identify ARs present in the highly virulent strains that might be responsible for their heightened virulence.

These variants then replicate more aggressively with heightened virulence that causes rapid T cell depletion, immune system collapse, and opportunistic infections that mark the advent of AIDS.

On the pathogen side, culling selects for heightened virulence.

When stimulated by exogenous LL-37 at physiological concentrations, P. aeruginosa exhibits heightened production of virulence factors pyocyanin, hydrogen cyanide, elastase and rhamnolipids.

The heightened discriminatory ability of virulence genes was attributable to the high degree of genetic variability at these loci.

Mutants in the SRP pathways show heightened sensitivity to environmental stresses and have greatly diminished virulence, though many traditional virulence factors are still produced (Rosch et al, 2008b; Trevino et al, 2010).

Generally, IFN I is considered detrimental in diseases caused by intracellular bacteria 7, including TB. Experimental studies in TB-resistant mice report heightened IFN I induction by clinical isolates of Mtb with increased virulence 8, 9 and fatal TB progression upon exogenous delivery of IFN I inducers 10.

For these reasons, the availability of small mammalian models to study the virulence of emerging influenza viruses, in addition to understanding the molecular determinants that confer heightened pathogenicity and transmissibility among selected strains, is essential.