Combining all four different strategies lead to higher pathogen virulence despite the beneficial effect of anti-infection vaccines.    From LearnThat.org.  [yourdictionary.com]

President Nelson Mandela's display of anti-white "virulence" at.    From Wordnik.com.  [ANC Daily News Briefing] Reference

The virulence of the malicious old man.    From Wordnet, Princeton University. 

The virulence of the plague.    From Wordnet, Princeton University. 

This is the part that makes us sick that they call virulence in the article.    From Wordnik.com.  [Breaking News: CBS News] Reference

What wonder, that this year, when as we are told, its virulence is unexampled in.    From Wordnik.com.  [II.2] Reference

It is very noteworthy here that one must certainly not conclude that the loss of disease-causing activity for cattle necessarily means a decrease in virulence for other animals.    From Wordnik.com.  [Emil von Behring - Nobel Lecture] Reference

The homologues have not been described as virulence determinants but a similar peptidase has been identified in.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

To this aim, they deliver so-called virulence factors through a transport channel located in the bacterial membrane.    From Wordnik.com.  [PhysOrg.com - latest science and technology news stories] Reference

She said bacteria cause disease by producing molecules called virulence factors, which require a type of chemical bond, disulfide bonds, to function.    From Wordnik.com.  [UQ News Online] Reference

There are enough HRC supporters out there complaining about the "virulence," "fanaticism" and "negativity" of Obama supporters in the blogosphere.    From Wordnik.com.  [Penn: "I Am Sorry" For Meeting With Colombian Ambassador] Reference

The microbes on the list have no common characteristic, such as virulence or pathogenicity, that ties them together.    From Wordnik.com.  [Web Edition | Bulletin of the Atomic Scientists] Reference

"And then we look for things that are called virulence factors, those things that in the past have been linked to more severe disease.    From Wordnik.com.  [The Swamp] Reference

Some of these genes they identified play fundamental roles in host-parasite interactions, such as virulence and the suppression of host defense systems.    From Wordnik.com.  [PhysOrg.com - latest science and technology news stories] Reference

All these detested him with that bitterest kind of virulence which the world calls ‘theological,’ and recognises as not to be paralleled among secular circles.    From Wordnik.com.  [Gathering Clouds: A Tale of the Days of St. Chrysostom] Reference

This is only a small instance of his virulence against.    From Wordnik.com.  [On the Portraits of English Authors on Gardening, with Biographical Notices of Them, 2nd edition, with considerable additions] Reference

In the end, Zarqawi may have been brought down by his own vanity and virulence.    From Wordnik.com.  [Death of a Terrorist] Reference

The virulence and lack of dignity in these attacks underscores her effectiveness.    From Wordnik.com.  [The Pelosi problem] Reference

By the inoculation of living virulent bacteria (exalted in virulence if necessary).    From Wordnik.com.  [The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged.] Reference

The virulence of the canker, however, at last enforced the necessity of a resolute cure.    From Wordnik.com.  [The Mirror of Taste, and Dramatic Censor, Vol. I, No. 4, April 1810] Reference

Furthermore this sterility was accompanied by loss in the culture media of (the original) virulence.    From Wordnik.com.  [The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology)] Reference

Pathogenic bacteria undergo a progressive loss of virulence when cultivated in the presence of light.    From Wordnik.com.  [The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged.] Reference

The government were equally protected with all others against the malevolence and virulence of the press.    From Wordnik.com.  [A Sketch of the Life of the late Henry Cooper Barrister-at-Law, of the Norfolk Circuit; as also, of his Father] Reference

The virulence of the agent matters, as does whether it is contagious (smallpox is, botulism and anthrax aren't).    From Wordnik.com.  [Mass Transit] Reference

The immunity may be made to reach a very high degree by ultimately using cultures of intensified virulence, this.    From Wordnik.com.  [Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy"] Reference

Anthrax, as it exists in nature, varies widely in virulence, so you have to select a particularly virulent strain.    From Wordnik.com.  [What Can Iraq Do?] Reference

Our principles are assailed now with just the same virulence that they used to be when we were in a small minority.    From Wordnik.com.  [History of the Thirty-Ninth Congress of the United States] Reference

This will prevent evaporation, and cultures thus sealed will remain unaltered in virulence for a considerable time.    From Wordnik.com.  [The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged.] Reference

Syphilis is the only disease which is transmitted in full virulence to the offspring, and its effect is simply murderous.    From Wordnik.com.  [The Home Medical Library, Volume II (of VI)] Reference

Not that there is any particular virulence in this superstition, but that all superstitions are awkward things to deal with.    From Wordnik.com.  [Blackwood's Edinburgh Magazine, Volume 61, No. 378, April, 1847] Reference

If a fluid containing septic vibrios be exposed to pure air, the vibrios should be killed and all virulence should disappear.    From Wordnik.com.  [The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology)] Reference

The length of this incubation period depends on the susceptibility of the animal, the virulence of the virus and the method of exposure.    From Wordnik.com.  [Common Diseases of Farm Animals] Reference

But so great is their virulence that they act on several vital organs before they can be antagonized by the natural elements of the blood.    From Wordnik.com.  [The Home Medical Library, Volume I (of VI)] Reference

But never before has EV71 struck with such virulence or in so many ways -- attacking the brain, the heart, even leaving a few children paralyzed.    From Wordnik.com.  [The Next Killer Virus] Reference

The tubercle bacillus is not really destroyed by external influences, and it may retain its virulence for several months in dried sputum if protected from the light.    From Wordnik.com.  [Common Diseases of Farm Animals] Reference

Perhaps most surprising to Kennedy was the virulence of the attacks from within her own party questioning her ability to be a senator and denouncing her sense of entitlement.    From Wordnik.com.  [Nannies And Taxes] Reference