Preposition: of

• pathogen: They also commonly contain double-stranded RNA of viral origin, which can affect the virulence of fungal pathogens.

• strain: The virulence of this strain of cholera is such that Maputo Central Hospital is using 13 liters of serum for each cholera patient.

• organism: Is it the virulence of the organism or the host immune response?

• virus: While freezing and refrigeration would not substantially reduce the concentration or virulence of viruses on contaminated meat, proper cooking kills such viruses.

Converse of object

• carry: Brown Rust of Barley The number of isolates carrying virulence to cv.

• increase: Theoretical studies indicate that partially effective vaccines may increase the virulence of pathogens.

Adjective modifier

• parasitoid: Work at Leiden University has shown considerable geographic variation across Europe in parasitoid virulence ( ability to prevent encapsulation ).

• increased: Code Red II's increased virulence was mostly caused by the included subnet scanning routines.

• low: Poliomyelitis virus of low virulence in patients with epidemic " summer grippe or sore throat " .

• high: Therefore, lack of genetic variation can not be the explanation for not detecting evolution of higher virulence.

• relative: The prevalence of eight toxin genes in Scottish MRSA and the association with strains and their relative virulence.

Modifies a noun

• determinant: Starter strains had less virulence determinants than food strains, which in turn had less than the pathogenic strains.

• factor: Barley mildew isolates continue to become more complex, the majority carrying eight or more virulence factors.

• gene: Recently experiments have been performed to look at the levels of virulence gene expression in mammalian cells.

• evolution: The direction of virulence evolution can be affected by the precise way in which clones interact in hosts.

• combination: Crown rust of oats Five virulence combinations were identified from the 1993 crown rust samples.

• expression: Recently experiments have been performed to look at the levels of virulence gene expression in mammalian cells.

Noun used with modifier

• pathogen: Combining all four different strategies lead to higher pathogen virulence despite the beneficial effect of anti-infection vaccines.

• parasite: Frank, S. A. ( 1996 ) Models of parasite virulence.

• barley: Mildew of barley Virulence factors corresponding to resistance factors in current barley cultivars were recorded at high levels similar to previous years.