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Tag: "virulence" at medical news

Evolution of HIV from African Greek Monkeys

...reen monkeys' SIVs, or SIVagm, may have lost their virulence more recently than the millions of years previousl...SIVagm was once a monkey killer, the change in its virulence may shed light on the future course and timing of the evolution of HIV. The new research also chal...

Scientists Discover Rare gene-for-gene Interaction That Helps Bacteria Kill Their Host

...tobacco hornworm) to study the bacterias so-called virulence genes. The beauty of this research is that we have been able to study the whole genome of the bacteria to work out how it kills its host, said Professor Stuart Reynolds from the University of Bath. People studying diseases think that the kind of ...

Mutant Parasites, Unable to Infect Hosts, Highlight Virulence Genes

...is screen highlighted genes not previously seen as virulence factors," says Knoll. From one mutant, Knoll's team pinpointed a gene that acts as a nuclear traffic cop, directing molecular traffic in and out of the parasite's nucleus, where the DNA resides. Mutations in the gene, called RCC1 (Regulator of Chromo...

Scientists Discover Rare ‘gene-for-gene’ Interaction That Helps Bacteria Kill Their Hot

...obacco hornworm) to study the bacteria’s so-called virulence genes. “The beauty of this research is that we have been able to study the whole genome of the bacteria to work out how it kills its host,” said Professor Stuart Reynolds from the University of Bath. “People studying diseases think that the kind ...

Super Bug - A Tough Bug to Plug

...uite ‘sick’ with the alien invasion. Of particular virulence among the family of super bugs is the Clostridium difficile, which networks with gusto among the NHS hospitals. The bug that plugs almost 4000 lives annually is also known for its caprice and unpredictability. Some hospitals are a hot favorite, whe...

Tuberculosis, A Challenge To The Political Will Of Governments, Says Veteran Crusader

...spreading its tentacles across the globe. Both its virulence and reach are of terrifying proportions. Tuberculosis is one of the world's leading infectious killers - second only to HIV/AIDS, admits the World Health Organisation (WHO). Each year about 1.6 million people die from this curable disease, it desp...

Brain-Damaged Girl Frozen in Time to Remain Child-Sized Forever

...ent spread, Ashley's parents were surprised by the virulence of some of the response. But the girl’s parents insisted that the treatment, carried out in 2004, was conceived for Ashley's benefit and not their own ease or convenience. With a lighter body and no breasts, Ashley will have fewer bedsores and lie mo...

Understanding Sleeping Sickness

...ty to respond to infection, the degree of parasite virulence or pathogenicity and the environment. An IRD team focused particularly on the role of host genetic diversity in response to T. b. gambiense infection (whether or not the disease develops). As human experimentation is excluded, genetic, epidemiologi...

Cell-Wall Carbohydrate in Anthrax Bacterium Holds Promise for New Vaccines

...ule an important target for evaluating its role in virulence and survival of the anthrax bacterium, the development of new diagnostic tests and perhaps even as a new vaccine additive. Russell Carlson of the department of biochemistry and molecular biology at the University of Georgia and faculty member at UGA...

An Infectious Agent of Deception, Exposed Through Proteomics

...ns, Adkins added, could help physicians assess the virulence of a given strain. The candidate proteins were winnowed from among 315 possibilities that emerged through a combination of techniques, culminating in measurements by Fourier-transform mass spectrometry, or FT-MS. A suite of FT-MS instruments custom...

Salmonella Bacteria Are Deceptive

...ns, Adkins added, could help physicians assess the virulence of a given strain. The candidate proteins were winnowed from among 315 possibilities that emerged through a combination of techniques, culminating in measurements by Fourier-transform mass spectrometry, or FT-MS. A suite of FT-MS instruments custom...

Latest Weapon in Battle against Drug-Resistant Bacteria

...hanges dramatically, become aggressive, turning on virulence genes to cause infection. Besides that several bac...therapies. The ability to interfere with bacterial virulence by intercepting bacterial communication networks represents a new therapeutic approach, and is clini...

Waxing And Waning Of Dengue Epidemics Attributed To Cross-Immunity

...temporary cross-immunity and variation in serotype virulence play in epidemics. They found that cross-immunity alone is enough to create the patterns that are observed in nature. The study is a major departure from other theories about what drives dengue epidemics. The conventional wisdom is that an amplifica...

New UCSD Program to Fight Drug-Resistant Bacteria

...coveries made at UCSD, we understand many specific virulence factors that allow bacteria to cause disease,” sai...roducts that disarm bacteria by neutralizing their virulence factors. In that way, the pathogens may be rendered harmless, without such a strong stimulus for res...

What to do with the Dead if a Flu Outbreak Happens?

...uestion ‘what to do with the dead?’ Although the virulence of the next global flu outbreak cannot be exactly predicted but experts estimate that even a modest epidemic in the scale of the 1968 epidemic could kill up to 207,000 Americans. Should it mimic the more violent attack 1918 strain, the death toll in ...

The new face of vaccine development

...ccus and Streptococcus pneumoniae because of their virulence and because they have very similar outer coats. Chemically, strains III and 14 of these two bacteria share a common molecular backbone. The only difference is a missing acidic sugar in the side chain of Streptococcus pneumoniae 14. The immune syste...

Researchers Discover New Pathogen In Immune-compromised Patient

...able genomes of CGD pathogens may provide clues to virulence properties that they share in common," they concluded. ...

Genetic Change In The H5N1 Virus Likely: Recombinomics Inc.

...at the virus may acquire the ability to retain its virulence and viability by facilitation of a homologous recombination to enable creation of novel genes that would aid the above purpose. The research institution is now all set to produce vaccines that would allow efficient management of the bird flu crisis ...

Co-infection of Two genetic diseases makes them susceptible to malaria

...e used to quickly screen parasites for evidence of virulence or drug resistance, or to uncover how they have evolved to avoid human immune responses. And with the sequence publicly available, leading genomics experts who had done little with malaria are now focusing their talent and technology on the disease. ...

Pig Bacterium (Streptococcus suis) Kills 24 In China

...d by known bacteria from pigs, though the size and virulence of the outbreak has baffled the World Health Organization. "It's never occurred in an outbreak this big before," WHO spokesman Bob Dietz told AFP. "We're accustomed to seeing only one or two cases. We're not accustomed to this large number of people ...

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